diff --git a/demos/qwebr-code-cell-options.html b/demos/qwebr-code-cell-options.html
index be31ae10..8e35738a 100644
--- a/demos/qwebr-code-cell-options.html
+++ b/demos/qwebr-code-cell-options.html
@@ -121,6 +121,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -270,7 +275,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"# Write your name here by replace ___\nname <- \"_____\"\nprint(paste0(\"Hello, \", name, \"!\"))","options":{"output":"true","warning":"true","comment":"","context":"interactive","dpi":72,"results":"markup","label":"unnamed-chunk-1","fig-height":5,"out-width":"700px","out-height":"","message":"true","fig-width":7,"fig-cap":"","classes":""}},{"id":2,"code":" \n# Generating a simple table\ndata <- data.frame(\n  Name = c(\"Alice\", \"Bob\", \"Charlie\"),\n  Age = c(25, 30, 22)\n)","options":{"output":"true","warning":"true","comment":"","context":"setup","dpi":72,"results":"markup","label":"unnamed-chunk-2","fig-height":5,"out-width":"700px","out-height":"","message":"true","fig-width":7,"fig-cap":"","classes":""}},{"id":3,"code":"knitr::kable(data, \"html\")","options":{"output":"true","warning":"true","comment":"","context":"interactive","dpi":72,"results":"asis","label":"unnamed-chunk-3","fig-height":5,"out-width":"700px","out-height":"","message":"true","fig-width":7,"fig-cap":"","classes":""}},{"id":4,"code":"knitr::kable(data, \"html\")","options":{"output":"true","warning":"true","comment":"","context":"interactive","dpi":72,"results":"markup","label":"unnamed-chunk-4","fig-height":5,"out-width":"700px","out-height":"","message":"true","fig-width":7,"fig-cap":"","classes":""}},{"id":5,"code":"\nplot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","options":{"output":"true","warning":"true","comment":"","context":"output","dpi":72,"results":"markup","label":"unnamed-chunk-5","fig-height":"6","out-width":"700px","out-height":"","message":"true","fig-width":"6","fig-cap":"","classes":""}},{"id":6,"code":"\nplot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","options":{"output":"true","warning":"true","comment":"","context":"output","dpi":72,"results":"markup","label":"unnamed-chunk-6","fig-height":5,"out-width":"700px","out-height":"","message":"true","fig-width":7,"fig-cap":"","classes":""}},{"id":7,"code":"plot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","options":{"output":"true","warning":"true","comment":"","context":"output","dpi":72,"results":"markup","label":"unnamed-chunk-7","fig-height":"6","out-width":"500px","out-height":"500px","message":"true","fig-width":"6","fig-cap":"","classes":""}}];
+globalThis.qwebrCellDetails = [{"options":{"out-width":"700px","label":"unnamed-chunk-1","dpi":72,"fig-height":5,"warning":"true","message":"true","classes":"","fig-width":7,"output":"true","out-height":"","fig-cap":"","context":"interactive","results":"markup","comment":""},"code":"# Write your name here by replace ___\nname <- \"_____\"\nprint(paste0(\"Hello, \", name, \"!\"))","id":1},{"options":{"out-width":"700px","label":"unnamed-chunk-2","dpi":72,"fig-height":5,"warning":"true","message":"true","classes":"","fig-width":7,"output":"true","out-height":"","fig-cap":"","context":"setup","results":"markup","comment":""},"code":" \n# Generating a simple table\ndata <- data.frame(\n  Name = c(\"Alice\", \"Bob\", \"Charlie\"),\n  Age = c(25, 30, 22)\n)","id":2},{"options":{"out-width":"700px","label":"unnamed-chunk-3","dpi":72,"fig-height":5,"warning":"true","message":"true","classes":"","fig-width":7,"output":"true","out-height":"","fig-cap":"","context":"interactive","results":"asis","comment":""},"code":"knitr::kable(data, \"html\")","id":3},{"options":{"out-width":"700px","label":"unnamed-chunk-4","dpi":72,"fig-height":5,"warning":"true","message":"true","classes":"","fig-width":7,"output":"true","out-height":"","fig-cap":"","context":"interactive","results":"markup","comment":""},"code":"knitr::kable(data, \"html\")","id":4},{"options":{"out-width":"700px","label":"unnamed-chunk-5","dpi":72,"fig-height":"6","warning":"true","message":"true","classes":"","fig-width":"6","output":"true","out-height":"","fig-cap":"","context":"output","results":"markup","comment":""},"code":"\nplot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","id":5},{"options":{"out-width":"700px","label":"unnamed-chunk-6","dpi":72,"fig-height":5,"warning":"true","message":"true","classes":"","fig-width":7,"output":"true","out-height":"","fig-cap":"","context":"output","results":"markup","comment":""},"code":"\nplot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","id":6},{"options":{"out-width":"500px","label":"unnamed-chunk-7","dpi":72,"fig-height":"6","warning":"true","message":"true","classes":"","fig-width":"6","output":"true","out-height":"500px","fig-cap":"","context":"output","results":"markup","comment":""},"code":"plot2::plot2(\n  ~ Petal.Length | Species,\n  data = iris,\n  type = \"density\",\n  palette = \"dark\", fill = \"by\",\n  grid = TRUE,\n  main = \"Distribution of petal lengths by species\"\n)","id":7}];
 
 </script>
 <script type="module">
@@ -622,7 +627,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/demos/qwebr-custom-repository.html b/demos/qwebr-custom-repository.html
index 52a31b6c..917aa2cb 100644
--- a/demos/qwebr-custom-repository.html
+++ b/demos/qwebr-custom-repository.html
@@ -121,6 +121,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -270,7 +275,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"label":"unnamed-chunk-1","dpi":72,"fig-width":7,"warning":"true","classes":"","results":"markup","out-height":"","message":"true","comment":"","output":"true","context":"interactive","fig-cap":"","fig-height":5,"out-width":"700px"},"code":"# Check to see if the function works\ndemorwasmbinary::in_webr()\n\n# View help documentation\n?demorwasmbinary::in_webr"}];
+globalThis.qwebrCellDetails = [{"code":"# Check to see if the function works\ndemorwasmbinary::in_webr()\n\n# View help documentation\n?demorwasmbinary::in_webr","id":1,"options":{"out-height":"","classes":"","context":"interactive","warning":"true","fig-height":5,"label":"unnamed-chunk-1","fig-cap":"","output":"true","comment":"","out-width":"700px","message":"true","dpi":72,"results":"markup","fig-width":7}}];
 
 </script>
 <script type="module">
@@ -622,7 +627,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/demos/qwebr-long-running-execution-interactive-locking.html b/demos/qwebr-long-running-execution-interactive-locking.html
index 5c408a82..2468b99e 100644
--- a/demos/qwebr-long-running-execution-interactive-locking.html
+++ b/demos/qwebr-long-running-execution-interactive-locking.html
@@ -87,6 +87,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -236,7 +241,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"classes":"","results":"markup","warning":"true","fig-width":7,"label":"unnamed-chunk-1","context":"interactive","output":"true","comment":"","message":"true","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"print(\"Hello {quarto-webr} world!\")\nSys.sleep(5) # Sleep for 5 seconds"},{"id":2,"options":{"classes":"","results":"markup","warning":"true","fig-width":7,"label":"unnamed-chunk-2","context":"interactive","output":"true","comment":"","message":"true","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"-3 + 5\nSys.sleep(5) # Sleep for 5 seconds"},{"id":3,"options":{"classes":"","results":"markup","warning":"true","fig-width":7,"label":"unnamed-chunk-3","context":"interactive","output":"true","comment":"","message":"true","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"?mean\nSys.sleep(5) # Sleep for 5 seconds"}];
+globalThis.qwebrCellDetails = [{"options":{"fig-width":7,"output":"true","warning":"true","classes":"","out-width":"700px","message":"true","out-height":"","label":"unnamed-chunk-1","comment":"","fig-cap":"","results":"markup","dpi":72,"fig-height":5,"context":"interactive"},"code":"print(\"Hello {quarto-webr} world!\")\nSys.sleep(5) # Sleep for 5 seconds","id":1},{"options":{"fig-width":7,"output":"true","warning":"true","classes":"","out-width":"700px","message":"true","out-height":"","label":"unnamed-chunk-2","comment":"","fig-cap":"","results":"markup","dpi":72,"fig-height":5,"context":"interactive"},"code":"-3 + 5\nSys.sleep(5) # Sleep for 5 seconds","id":2},{"options":{"fig-width":7,"output":"true","warning":"true","classes":"","out-width":"700px","message":"true","out-height":"","label":"unnamed-chunk-3","comment":"","fig-cap":"","results":"markup","dpi":72,"fig-height":5,"context":"interactive"},"code":"?mean\nSys.sleep(5) # Sleep for 5 seconds","id":3}];
 
 </script>
 <script type="module">
@@ -588,7 +593,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/demos/qwebr-non-interactive-areas.html b/demos/qwebr-non-interactive-areas.html
index dedcebc6..cee9c082 100644
--- a/demos/qwebr-non-interactive-areas.html
+++ b/demos/qwebr-non-interactive-areas.html
@@ -87,6 +87,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -236,7 +241,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"g <- ggplot(mtcars, aes(x = wt, y = mpg)) \n\nSys.sleep(0.5)","options":{"out-height":"","label":"unnamed-chunk-1","results":"markup","out-width":"700px","warning":"true","classes":"","context":"setup","output":"true","dpi":72,"fig-cap":"","comment":"","fig-height":5,"fig-width":7,"message":"true"}},{"id":2,"code":"g + geom_point()\n\nSys.sleep(0.5)","options":{"out-height":"","label":"unnamed-chunk-2","results":"markup","out-width":"700px","warning":"true","classes":"","context":"output","output":"true","dpi":72,"fig-cap":"","comment":"","fig-height":5,"fig-width":7,"message":"true"}},{"id":3,"code":"g + geom_point(aes(colour = factor(cyl)))\nSys.sleep(0.5)","options":{"out-height":"","label":"unnamed-chunk-3","results":"markup","out-width":"700px","warning":"true","classes":"","context":"output","output":"true","dpi":72,"fig-cap":"","comment":"","fig-height":5,"fig-width":7,"message":"true"}},{"id":4,"code":"g","options":{"out-height":"","label":"unnamed-chunk-4","results":"markup","out-width":"700px","warning":"true","classes":"","context":"interactive","output":"true","dpi":72,"fig-cap":"","comment":"","fig-height":5,"fig-width":7,"message":"true"}}];
+globalThis.qwebrCellDetails = [{"options":{"warning":"true","context":"setup","label":"unnamed-chunk-1","comment":"","message":"true","out-width":"700px","out-height":"","fig-height":5,"results":"markup","classes":"","fig-cap":"","dpi":72,"output":"true","fig-width":7},"code":"g <- ggplot(mtcars, aes(x = wt, y = mpg)) \n\nSys.sleep(0.5)","id":1},{"options":{"warning":"true","context":"output","label":"unnamed-chunk-2","comment":"","message":"true","out-width":"700px","out-height":"","fig-height":5,"results":"markup","classes":"","fig-cap":"","dpi":72,"output":"true","fig-width":7},"code":"g + geom_point()\n\nSys.sleep(0.5)","id":2},{"options":{"warning":"true","context":"output","label":"unnamed-chunk-3","comment":"","message":"true","out-width":"700px","out-height":"","fig-height":5,"results":"markup","classes":"","fig-cap":"","dpi":72,"output":"true","fig-width":7},"code":"g + geom_point(aes(colour = factor(cyl)))\nSys.sleep(0.5)","id":3},{"options":{"warning":"true","context":"interactive","label":"unnamed-chunk-4","comment":"","message":"true","out-width":"700px","out-height":"","fig-height":5,"results":"markup","classes":"","fig-cap":"","dpi":72,"output":"true","fig-width":7},"code":"g","id":4}];
 
 </script>
 <script type="module">
@@ -588,7 +593,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/demos/qwebr-setting-options-in-document-yaml.html b/demos/qwebr-setting-options-in-document-yaml.html
index db504c70..27601ead 100644
--- a/demos/qwebr-setting-options-in-document-yaml.html
+++ b/demos/qwebr-setting-options-in-document-yaml.html
@@ -87,6 +87,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -236,7 +241,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"fig-height":5,"label":"unnamed-chunk-1","warning":"true","results":"markup","context":"interactive","dpi":72,"comment":"","classes":"","fig-cap":"","message":"true","output":"true","fig-width":7,"out-width":"700px","out-height":""},"code":"library(\"ggplot2\")\n\nggplot()"}];
+globalThis.qwebrCellDetails = [{"options":{"fig-cap":"","warning":"true","context":"interactive","out-width":"700px","results":"markup","comment":"","classes":"","output":"true","fig-width":7,"message":"true","fig-height":5,"label":"unnamed-chunk-1","out-height":"","dpi":72},"code":"library(\"ggplot2\")\n\nggplot()","id":1}];
 
 </script>
 <script type="module">
@@ -588,7 +593,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/blog/index.html b/examples/blog/index.html
index a15a60f7..f9972e85 100644
--- a/examples/blog/index.html
+++ b/examples/blog/index.html
@@ -205,7 +205,7 @@ <h5 class="quarto-listing-category-title">Categories</h5><div class="quarto-list
 
 <div class="quarto-listing quarto-listing-container-default" id="listing-listing">
 <div class="list quarto-listing-default">
-<div class="quarto-post image-right" data-index="0" data-categories="news,code,analysis" data-listing-date-sort="1699833600000" data-listing-file-modified-sort="1706706012278" data-listing-date-modified-sort="NaN" data-listing-reading-time-sort="1" data-listing-word-count-sort="125">
+<div class="quarto-post image-right" data-index="0" data-categories="news,code,analysis" data-listing-date-sort="1699833600000" data-listing-file-modified-sort="1706858204963" data-listing-date-modified-sort="NaN" data-listing-reading-time-sort="1" data-listing-word-count-sort="125">
 <div class="thumbnail">
 <p><a href="./posts/embed-slides/index.html" class="no-external"></a></p><a href="./posts/embed-slides/index.html" class="no-external">
 <p><img src="./posts/embed-slides/image.jpg" class="thumbnail-image"></p>
@@ -244,7 +244,7 @@ <h3 class="no-anchor listing-title">
 </a>
 </div>
 </div>
-<div class="quarto-post image-right" data-index="1" data-categories="news,code,analysis" data-listing-date-sort="1699747200000" data-listing-file-modified-sort="1706706012278" data-listing-date-modified-sort="NaN" data-listing-reading-time-sort="1" data-listing-word-count-sort="41">
+<div class="quarto-post image-right" data-index="1" data-categories="news,code,analysis" data-listing-date-sort="1699747200000" data-listing-file-modified-sort="1706858204963" data-listing-date-modified-sort="NaN" data-listing-reading-time-sort="1" data-listing-word-count-sort="41">
 <div class="thumbnail">
 <p><a href="./posts/post-with-code/index.html" class="no-external"></a></p><a href="./posts/post-with-code/index.html" class="no-external">
 <p><img src="./posts/post-with-code/image.jpg" class="thumbnail-image"></p>
diff --git a/examples/blog/posts/post-with-code/index.html b/examples/blog/posts/post-with-code/index.html
index a236eb00..754b4146 100644
--- a/examples/blog/posts/post-with-code/index.html
+++ b/examples/blog/posts/post-with-code/index.html
@@ -80,6 +80,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -229,7 +234,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"fig-height":5,"fig-cap":"","warning":"true","results":"markup","fig-width":7,"comment":"","message":"true","dpi":72,"out-width":"700px","label":"unnamed-chunk-1","classes":"","out-height":"","context":"interactive","output":"true"},"code":"print(\"Hello blog Quarto world!\")"}];
+globalThis.qwebrCellDetails = [{"code":"print(\"Hello blog Quarto world!\")","options":{"warning":"true","message":"true","out-width":"700px","comment":"","context":"interactive","output":"true","fig-width":7,"fig-height":5,"fig-cap":"","classes":"","out-height":"","results":"markup","dpi":72,"label":"unnamed-chunk-1"},"id":1}];
 
 </script>
 <script type="module">
@@ -581,7 +586,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/book/example-page.html b/examples/book/example-page.html
index f93ef306..705172e6 100644
--- a/examples/book/example-page.html
+++ b/examples/book/example-page.html
@@ -80,6 +80,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -229,7 +234,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"within(mtcars, {\n    mtcars[order(cyl, disp), , drop = FALSE]\n})","id":1,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-1","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}},{"code":"library(dplyr)\nmtcars |> \n    arrange(cyl, disp)","id":2,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-2","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}},{"code":"mtcars_by <- by(mtcars, mtcars$cyl, function(df) {\n  with(df, data.frame(cyl = cyl[[1]], mean = mean(disp), n = nrow(df)))\n})\ndo.call(rbind, mtcars_by)","id":3,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-3","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}},{"code":"library(dplyr)\n\nmtcars |> \n  group_by(cyl) |> \n  summarise(mean = mean(disp), n = n())","id":4,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-4","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}},{"code":"plot(mtcars$wt, mtcars$mpg,\n   main = \"Scatterplot in Base R\",\n   xlab = \"Car Weight\", ylab = \"MPG\", \n   col = \"blue\", lwd = 1)\nabline(lm(mtcars$mpg ~ mtcars$wt), col = \"red\")","id":5,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-5","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}},{"code":"library(ggplot2)\n\nggplot(mtcars, aes(x = wt, y = mpg)) +\n  geom_point(size=2, color=\"blue\", stroke=1) + \n  geom_smooth(method=lm, color=\"red\") +\n  ggtitle(\"Scatterplot in ggplot2\") +\n  xlab(\"Car Weight\")","id":6,"options":{"output":"true","comment":"","out-height":"","warning":"true","label":"unnamed-chunk-6","message":"true","results":"markup","context":"interactive","fig-cap":"","classes":"","out-width":"700px","fig-height":5,"fig-width":7,"dpi":72}}];
+globalThis.qwebrCellDetails = [{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-1","results":"markup","out-height":"","classes":""},"code":"within(mtcars, {\n    mtcars[order(cyl, disp), , drop = FALSE]\n})","id":1},{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-2","results":"markup","out-height":"","classes":""},"code":"library(dplyr)\nmtcars |> \n    arrange(cyl, disp)","id":2},{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-3","results":"markup","out-height":"","classes":""},"code":"mtcars_by <- by(mtcars, mtcars$cyl, function(df) {\n  with(df, data.frame(cyl = cyl[[1]], mean = mean(disp), n = nrow(df)))\n})\ndo.call(rbind, mtcars_by)","id":3},{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-4","results":"markup","out-height":"","classes":""},"code":"library(dplyr)\n\nmtcars |> \n  group_by(cyl) |> \n  summarise(mean = mean(disp), n = n())","id":4},{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-5","results":"markup","out-height":"","classes":""},"code":"plot(mtcars$wt, mtcars$mpg,\n   main = \"Scatterplot in Base R\",\n   xlab = \"Car Weight\", ylab = \"MPG\", \n   col = \"blue\", lwd = 1)\nabline(lm(mtcars$mpg ~ mtcars$wt), col = \"red\")","id":5},{"options":{"fig-height":5,"out-width":"700px","comment":"","output":"true","fig-width":7,"context":"interactive","warning":"true","message":"true","dpi":72,"fig-cap":"","label":"unnamed-chunk-6","results":"markup","out-height":"","classes":""},"code":"library(ggplot2)\n\nggplot(mtcars, aes(x = wt, y = mpg)) +\n  geom_point(size=2, color=\"blue\", stroke=1) + \n  geom_smooth(method=lm, color=\"red\") +\n  ggtitle(\"Scatterplot in ggplot2\") +\n  xlab(\"Car Weight\")","id":6}];
 
 </script>
 <script type="module">
@@ -581,7 +586,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/book/index.html b/examples/book/index.html
index 36d3d571..448eb07a 100644
--- a/examples/book/index.html
+++ b/examples/book/index.html
@@ -7,7 +7,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
 
 <meta name="author" content="JJB">
-<meta name="dcterms.date" content="2024-01-31">
+<meta name="dcterms.date" content="2024-02-02">
 
 <title>Sample quarto-webr Book Project</title>
 <style>
@@ -81,6 +81,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -230,7 +235,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"options":{"fig-cap":"","context":"interactive","out-height":"","results":"markup","output":"true","fig-height":5,"label":"unnamed-chunk-1","dpi":72,"warning":"true","out-width":"700px","fig-width":7,"message":"true","comment":"","classes":""},"id":1,"code":"print(\"Hello there! Welcome to a quarto-webR powered book!\")"}];
+globalThis.qwebrCellDetails = [{"options":{"message":"true","out-width":"700px","dpi":72,"warning":"true","output":"true","fig-cap":"","comment":"","classes":"","fig-height":5,"results":"markup","fig-width":7,"out-height":"","label":"unnamed-chunk-1","context":"interactive"},"code":"print(\"Hello there! Welcome to a quarto-webR powered book!\")","id":1}];
 
 </script>
 <script type="module">
@@ -582,7 +587,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
@@ -1239,7 +1244,7 @@ <h1 class="title">Sample quarto-webr Book Project</h1>
     <div>
     <div class="quarto-title-meta-heading">Published</div>
     <div class="quarto-title-meta-contents">
-      <p class="date">January 31, 2024</p>
+      <p class="date">February 2, 2024</p>
     </div>
   </div>
   
diff --git a/examples/html-document/index.html b/examples/html-document/index.html
index c84d5379..b9e769a6 100644
--- a/examples/html-document/index.html
+++ b/examples/html-document/index.html
@@ -45,6 +45,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -194,7 +199,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"print(\"Hello there! Welcome to a quarto-webR powered HTML Document!\")","options":{"out-width":"700px","message":"true","warning":"true","classes":"","output":"true","out-height":"","dpi":72,"context":"interactive","results":"markup","comment":"","fig-width":7,"label":"unnamed-chunk-1","fig-height":5,"fig-cap":""}}];
+globalThis.qwebrCellDetails = [{"options":{"warning":"true","fig-cap":"","output":"true","dpi":72,"message":"true","fig-height":5,"results":"markup","comment":"","out-height":"","context":"interactive","label":"unnamed-chunk-1","classes":"","fig-width":7,"out-width":"700px"},"code":"print(\"Hello there! Welcome to a quarto-webR powered HTML Document!\")","id":1}];
 
 </script>
 <script type="module">
@@ -546,7 +551,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/readme/index.html b/examples/readme/index.html
index 31d5698f..fd2252e3 100644
--- a/examples/readme/index.html
+++ b/examples/readme/index.html
@@ -45,6 +45,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -194,7 +199,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"fit = lm(mpg ~ am, data = mtcars)\n\nsummary(fit)","id":1,"options":{"comment":"","fig-cap":"","results":"markup","warning":"true","out-width":"700px","output":"true","context":"interactive","label":"unnamed-chunk-1","classes":"","dpi":72,"message":"true","fig-width":7,"fig-height":5,"out-height":""}}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"comment":"","context":"interactive","results":"markup","dpi":72,"out-height":"","label":"unnamed-chunk-1","fig-cap":"","classes":"","fig-height":5,"out-width":"700px","output":"true","fig-width":7,"message":"true","warning":"true"},"code":"fit = lm(mpg ~ am, data = mtcars)\n\nsummary(fit)"}];
 
 </script>
 <script type="module">
@@ -546,7 +551,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/revealjs/index.html b/examples/revealjs/index.html
index eeb0a806..19505d17 100644
--- a/examples/revealjs/index.html
+++ b/examples/revealjs/index.html
@@ -396,6 +396,11 @@
     width: 100%;
     display: flex;
     justify-content: space-between;
+    box-sizing: border-box;
+  }
+
+  .qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+    display: flex;
   }
 
   .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -545,7 +550,7 @@
   };
 
   // Store cell data
-  globalThis.qwebrCellDetails = [{"code":"fit = lm(mpg ~ wt, data = mtcars)\n\nsummary(fit)","id":1,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-1","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}},{"code":"plot(pressure)","id":2,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-2","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}},{"code":"ggplot(mpg, aes(displ, hwy, colour = class)) + \n  geom_point()","id":3,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-3","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}},{"code":"?mean","id":4,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-4","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}},{"code":"cat(\"Hello there!\\n\")\n\nx = c(1, 2, 3)\nprint(x)\n\nwarning(\"Uh-oh, something is amiss\")\n\nstop(\"I'm sorry Dave, I'm afraid I can't do that\")","id":5,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-5","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}},{"code":"print(\"Hello quarto-webr RevealJS world!\")\n\n3 + 5","id":6,"options":{"context":"interactive","results":"markup","out-width":"700px","fig-width":7,"message":"true","label":"unnamed-chunk-6","warning":"true","output":"true","fig-cap":"","comment":"","out-height":"","classes":"","dpi":72,"fig-height":5}}];
+  globalThis.qwebrCellDetails = [{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-1","fig-width":7,"fig-height":5},"id":1,"code":"fit = lm(mpg ~ wt, data = mtcars)\n\nsummary(fit)"},{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-2","fig-width":7,"fig-height":5},"id":2,"code":"plot(pressure)"},{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-3","fig-width":7,"fig-height":5},"id":3,"code":"ggplot(mpg, aes(displ, hwy, colour = class)) + \n  geom_point()"},{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-4","fig-width":7,"fig-height":5},"id":4,"code":"?mean"},{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-5","fig-width":7,"fig-height":5},"id":5,"code":"cat(\"Hello there!\\n\")\n\nx = c(1, 2, 3)\nprint(x)\n\nwarning(\"Uh-oh, something is amiss\")\n\nstop(\"I'm sorry Dave, I'm afraid I can't do that\")"},{"options":{"results":"markup","warning":"true","fig-cap":"","classes":"","out-width":"700px","out-height":"","output":"true","message":"true","dpi":72,"context":"interactive","comment":"","label":"unnamed-chunk-6","fig-width":7,"fig-height":5},"id":6,"code":"print(\"Hello quarto-webr RevealJS world!\")\n\n3 + 5"}];
 
   </script>
   <script type="module">
@@ -897,7 +902,7 @@
 
   // Function to load a single package
   async function qwebrLoadRPackage(packageName) {
-    await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+    await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
   }
 
   // Generic function to process R packages
diff --git a/examples/website/example-page.html b/examples/website/example-page.html
index 3ce58246..fa9c81b0 100644
--- a/examples/website/example-page.html
+++ b/examples/website/example-page.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"library(ggplot2)\n\np <- ggplot(mpg, aes(cyl, hwy))\np + geom_jitter(aes(colour = class))","id":1,"options":{"message":"true","results":"markup","output":"true","dpi":72,"out-height":"","fig-cap":"","label":"unnamed-chunk-1","classes":"","comment":"","context":"interactive","fig-width":7,"fig-height":5,"out-width":"700px","warning":"true"}}];
+globalThis.qwebrCellDetails = [{"options":{"out-width":"700px","context":"interactive","label":"unnamed-chunk-1","dpi":72,"warning":"true","results":"markup","fig-width":7,"message":"true","fig-height":5,"comment":"","classes":"","output":"true","out-height":"","fig-cap":""},"id":1,"code":"library(ggplot2)\n\np <- ggplot(mpg, aes(cyl, hwy))\np + geom_jitter(aes(colour = class))"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/examples/website/index.html b/examples/website/index.html
index 877d346a..13c04dfc 100644
--- a/examples/website/index.html
+++ b/examples/website/index.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"print(\"Hello there! Welcome to a quarto-webR powered website!\")","options":{"fig-cap":"","context":"interactive","label":"unnamed-chunk-1","out-width":"700px","output":"true","warning":"true","classes":"","comment":"","results":"markup","dpi":72,"message":"true","fig-width":7,"fig-height":5,"out-height":""},"id":1}];
+globalThis.qwebrCellDetails = [{"code":"print(\"Hello there! Welcome to a quarto-webR powered website!\")","id":1,"options":{"comment":"","message":"true","results":"markup","output":"true","fig-width":7,"out-height":"","label":"unnamed-chunk-1","fig-cap":"","out-width":"700px","context":"interactive","dpi":72,"warning":"true","fig-height":5,"classes":""}}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/index.html b/index.html
index a98a123e..4cf896c2 100644
--- a/index.html
+++ b/index.html
@@ -87,6 +87,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -236,7 +241,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"warning":"true","output":"true","context":"interactive","dpi":72,"message":"true","results":"markup","comment":"","label":"unnamed-chunk-1","classes":"","fig-cap":"","fig-height":5,"out-width":"700px","fig-width":7,"out-height":""},"code":"# Fit a linear model\nmodel = lm(mpg ~ wt, data = mtcars)\n\n# Obtain a summary\nsummary(model)"}];
+globalThis.qwebrCellDetails = [{"options":{"warning":"true","context":"interactive","label":"unnamed-chunk-1","comment":"","out-height":"","fig-width":7,"fig-cap":"","results":"markup","out-width":"700px","message":"true","classes":"","output":"true","fig-height":5,"dpi":72},"code":"# Fit a linear model\nmodel = lm(mpg ~ wt, data = mtcars)\n\n# Obtain a summary\nsummary(model)","id":1}];
 
 </script>
 <script type="module">
@@ -588,7 +593,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/qwebr-acknowledgements.html b/qwebr-acknowledgements.html
index 66fd310e..4c98119b 100644
--- a/qwebr-acknowledgements.html
+++ b/qwebr-acknowledgements.html
@@ -340,7 +340,7 @@ <h1 class="title">Acknowledgments and Collaborations</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-cell-options.html b/qwebr-cell-options.html
index 7cf64d7e..7f914858 100644
--- a/qwebr-cell-options.html
+++ b/qwebr-cell-options.html
@@ -372,7 +372,7 @@ <h1 class="title">Code Cell Options</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-code-cell-demos.html b/qwebr-code-cell-demos.html
index 00810adc..b9142817 100644
--- a/qwebr-code-cell-demos.html
+++ b/qwebr-code-cell-demos.html
@@ -123,6 +123,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -272,7 +277,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"1 + 1","id":1,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-1","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"fit <- lm(mpg ~ vs, data = mtcars)\n\nsummary(fit)","id":2,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-2","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"# Try running selected code at the start of the line\nprint(\"Hello quarto-webr World!\")\n\n# Try highlight only -3 or 5 and pressing the keys required\n# for the \"selected code\" approach\n-3 + 5\n\n# Finally, try running the entire code cell by using Shift + ↩","id":3,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-3","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"plot(\n  mpg ~ wt,\n  data = mtcars,\n  col = \"blue\", \n  xlab = \"Miles/(US) gallon\",\n  ylab = \"Weight (1000 lbs)\",\n  main = \"Miles per Gallon and Weight of Cars\",\n  sub = \"Source: 1974 Motor Trend US magazine.\"\n)","id":4,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-4","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"35 + ________","id":5,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-5","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"# Create a copy of the data\nmtcars2 <- mtcars\n\n# Change variable to a factor\nmtcars2$vs <- factor(mtcars2$vs, labels = c(\"V\", \"S\"))\n\nmodified_vs_data = data.frame(\n  \"original_vs\" = mtcars$vs,\n  \"modified_vs\" = mtcars2$vs\n)\n\nhead(modified_vs_data)","id":6,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-6","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"webr::install(\"ggplot2\")","id":7,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-7","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"library(ggplot2)\n\np <- ggplot(mpg, aes(class, hwy))\np + geom_boxplot()","id":8,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-8","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"name <- \"James\"\nage <- 42","id":9,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-9","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"message(name, \" is \", age, \" years old!\")","id":10,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-10","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"say_hello = function(name) {\n  msg = paste0(\"Hello \", name, \"! Welcome to webR :)\")\n  return(msg)\n}\n\nsay_hello(\"James\")","id":11,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-11","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"say_hello(\"Hulya\")","id":12,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-12","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"stop(\"This is a hard error\")","id":13,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-13","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"variable_not_defined","id":14,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-14","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"warning(\"Uh-oh, there's a warning!\")\n\n# Compute a value\n1 + 1","id":15,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-15","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"quadratic_roots <- function(a, b, c) {\n\n  cat(paste0(\"Analyzing the quadratic equation: \", a, \"x^2 + \", b, \"x + \", c, \".\"))\n\n  discriminant <- (b^2) - (4*a*c)\n\n  # Check if there are 2 solutions\n  if(discriminant != 0) {\n\n    # Are the solutions imaginary?\n    if(discriminant < 0) {\n      warning(\"There are no real-numbered roots for this quadratic equation.\")\n      discriminant <- as.complex(discriminant)\n    }\n    \n    # Compute the solutions\n    x_intercepts <- (-b + c(-1, 1) * sqrt(discriminant)) / (2*a)\n\n    return(x_intercepts)\n  } \n\n  # When the discriminant is 0, compute a single solution.\n  x_intercept <- (-b) / (2*a)\n\n  return(x_intercept)\n}\n\nquadratic_roots(1, 3, 7)","id":16,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-16","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"seven_seas <- \"Ahoy, matey!\\nLet's set sail for adventure!\\n\"\nseven_seas","id":17,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-17","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"add_one <- \\(x) x + 1\nadd_one(2)","id":18,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-18","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}},{"code":"","id":19,"options":{"fig-cap":"","context":"interactive","results":"markup","out-width":"700px","message":"true","label":"unnamed-chunk-19","fig-width":7,"comment":"","warning":"true","output":"true","dpi":72,"fig-height":5,"classes":"","out-height":""}}];
+globalThis.qwebrCellDetails = [{"code":"1 + 1","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-1","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":1},{"code":"fit <- lm(mpg ~ vs, data = mtcars)\n\nsummary(fit)","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-2","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":2},{"code":"# Try running selected code at the start of the line\nprint(\"Hello quarto-webr World!\")\n\n# Try highlight only -3 or 5 and pressing the keys required\n# for the \"selected code\" approach\n-3 + 5\n\n# Finally, try running the entire code cell by using Shift + ↩","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-3","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":3},{"code":"plot(\n  mpg ~ wt,\n  data = mtcars,\n  col = \"blue\", \n  xlab = \"Miles/(US) gallon\",\n  ylab = \"Weight (1000 lbs)\",\n  main = \"Miles per Gallon and Weight of Cars\",\n  sub = \"Source: 1974 Motor Trend US magazine.\"\n)","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-4","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":4},{"code":"35 + ________","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-5","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":5},{"code":"# Create a copy of the data\nmtcars2 <- mtcars\n\n# Change variable to a factor\nmtcars2$vs <- factor(mtcars2$vs, labels = c(\"V\", \"S\"))\n\nmodified_vs_data = data.frame(\n  \"original_vs\" = mtcars$vs,\n  \"modified_vs\" = mtcars2$vs\n)\n\nhead(modified_vs_data)","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-6","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":6},{"code":"webr::install(\"ggplot2\")","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-7","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":7},{"code":"library(ggplot2)\n\np <- ggplot(mpg, aes(class, hwy))\np + geom_boxplot()","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-8","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":8},{"code":"name <- \"James\"\nage <- 42","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-9","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":9},{"code":"message(name, \" is \", age, \" years old!\")","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-10","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":10},{"code":"say_hello = function(name) {\n  msg = paste0(\"Hello \", name, \"! Welcome to webR :)\")\n  return(msg)\n}\n\nsay_hello(\"James\")","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-11","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":11},{"code":"say_hello(\"Hulya\")","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-12","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":12},{"code":"stop(\"This is a hard error\")","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-13","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":13},{"code":"variable_not_defined","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-14","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":14},{"code":"warning(\"Uh-oh, there's a warning!\")\n\n# Compute a value\n1 + 1","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-15","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":15},{"code":"quadratic_roots <- function(a, b, c) {\n\n  cat(paste0(\"Analyzing the quadratic equation: \", a, \"x^2 + \", b, \"x + \", c, \".\"))\n\n  discriminant <- (b^2) - (4*a*c)\n\n  # Check if there are 2 solutions\n  if(discriminant != 0) {\n\n    # Are the solutions imaginary?\n    if(discriminant < 0) {\n      warning(\"There are no real-numbered roots for this quadratic equation.\")\n      discriminant <- as.complex(discriminant)\n    }\n    \n    # Compute the solutions\n    x_intercepts <- (-b + c(-1, 1) * sqrt(discriminant)) / (2*a)\n\n    return(x_intercepts)\n  } \n\n  # When the discriminant is 0, compute a single solution.\n  x_intercept <- (-b) / (2*a)\n\n  return(x_intercept)\n}\n\nquadratic_roots(1, 3, 7)","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-16","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":16},{"code":"seven_seas <- \"Ahoy, matey!\\nLet's set sail for adventure!\\n\"\nseven_seas","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-17","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":17},{"code":"add_one <- \\(x) x + 1\nadd_one(2)","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-18","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":18},{"code":"","options":{"warning":"true","fig-height":5,"output":"true","dpi":72,"classes":"","out-height":"","label":"unnamed-chunk-19","comment":"","results":"markup","fig-cap":"","message":"true","context":"interactive","fig-width":7,"out-width":"700px"},"id":19}];
 
 </script>
 <script type="module">
@@ -624,7 +629,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
@@ -1446,7 +1451,7 @@ <h1 class="title">Exploring Interactive Code Cells</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-communication-channels.html b/qwebr-communication-channels.html
index 1051fce6..0cd56333 100644
--- a/qwebr-communication-channels.html
+++ b/qwebr-communication-channels.html
@@ -123,6 +123,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -272,7 +277,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"# Attempt to used an input-blocked function\nx = readline(\"What is your favorite color?\")\n\n## View the value of x\n# print(x)","options":{"fig-cap":"","warning":"true","results":"markup","out-width":"700px","context":"interactive","label":"unnamed-chunk-1","dpi":72,"classes":"","message":"true","fig-height":5,"comment":"","fig-width":7,"output":"true","out-height":""}}];
+globalThis.qwebrCellDetails = [{"options":{"message":"true","output":"true","warning":"true","out-width":"700px","dpi":72,"results":"markup","comment":"","label":"unnamed-chunk-1","fig-height":5,"context":"interactive","fig-cap":"","fig-width":7,"out-height":"","classes":""},"id":1,"code":"# Attempt to used an input-blocked function\nx = readline(\"What is your favorite color?\")\n\n## View the value of x\n# print(x)"}];
 
 </script>
 <script type="module">
@@ -624,7 +629,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
@@ -1439,7 +1444,7 @@ <h1 class="title">Communication Channels</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-community-examples.html b/qwebr-community-examples.html
index 7aaa24bf..87ffe0ec 100644
--- a/qwebr-community-examples.html
+++ b/qwebr-community-examples.html
@@ -342,7 +342,7 @@ <h1 class="title">Community Examples</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-deployment-templates.html b/qwebr-deployment-templates.html
index 4eafdd24..b3214aaf 100644
--- a/qwebr-deployment-templates.html
+++ b/qwebr-deployment-templates.html
@@ -338,7 +338,7 @@ <h1 class="title">Deployment Templates</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-developer-resources.html b/qwebr-developer-resources.html
index d6900428..9260e546 100644
--- a/qwebr-developer-resources.html
+++ b/qwebr-developer-resources.html
@@ -348,7 +348,7 @@ <h1 class="title">Developer Resources</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-extension-website.html b/qwebr-extension-website.html
index 0c2a73fb..2ab82f9e 100644
--- a/qwebr-extension-website.html
+++ b/qwebr-extension-website.html
@@ -377,7 +377,7 @@ <h1 class="title">Extension Website</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-faq.html b/qwebr-faq.html
index af1bde33..f237cbc2 100644
--- a/qwebr-faq.html
+++ b/qwebr-faq.html
@@ -341,7 +341,7 @@ <h1 class="title">Frequently Asked Questions</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-first-steps.html b/qwebr-first-steps.html
index 54d3a177..ca0bf8ed 100644
--- a/qwebr-first-steps.html
+++ b/qwebr-first-steps.html
@@ -378,7 +378,7 @@ <h1 class="title">Making your first webR-powered Quarto document</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-internal-cell.html b/qwebr-internal-cell.html
index b35c4c52..642fb26b 100644
--- a/qwebr-internal-cell.html
+++ b/qwebr-internal-cell.html
@@ -123,6 +123,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -272,7 +277,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"meaning_of_life = 42","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-1","message":"true","fig-width":7,"dpi":72,"context":"setup","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":1},{"code":"meaning_of_life","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-2","message":"true","fig-width":7,"dpi":72,"context":"interactive","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":2},{"code":"mat2x2 <- matrix(c(1, 2, 3, 4), nrow = 2)\nmat2x2","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-3","message":"true","fig-width":7,"dpi":72,"context":"output","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":3},{"code":"plot(\n  mpg ~ wt,\n  data = mtcars,\n  col = \"blue\", \n  xlab = \"Miles/(US) gallon\",\n  ylab = \"Weight (1000 lbs)\",\n  main = \"Miles per Gallon and Weight of Cars\",\n  sub = \"Source: 1974 Motor Trend US magazine.\"\n)","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-4","message":"true","fig-width":7,"dpi":72,"context":"output","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":4},{"code":"\n# Download a dataset\ndownload.file(\n  'https://raw.githubusercontent.com/coatless/raw-data/main/penguins.csv',\n  'penguins.csv'\n)\n\n# Read the data\ndf_penguins = read.csv(\"penguins.csv\")","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-5","message":"true","fig-width":7,"dpi":72,"context":"setup","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":5},{"code":"# Display the head of the data\nhead(df_penguins)","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-6","message":"true","fig-width":7,"dpi":72,"context":"interactive","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":6},{"code":"\nmtcars2 <- within(mtcars, {\n   vs <- factor(vs, labels = c(\"V\", \"S\"))\n   am <- factor(am, labels = c(\"automatic\", \"manual\"))\n   cyl  <- ordered(cyl)\n   gear <- ordered(gear)\n   carb <- ordered(carb)\n})\n\nsummary(mtcars2)","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-7","message":"true","fig-width":7,"dpi":72,"context":"output","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":7},{"code":"answer_frame <- data.frame(\n  problem = c(\"1a\", \"1b\", \"2\"),\n  answer = c(10, 2, 3/16),\n  tol = c(0.001, 0, 1/32)\n)\n\ncheck <- function(problem, answer) {\n  aframe <- answer_frame\n  if(!problem %in% aframe$problem) {\n    error_msg <- paste0(\"Please enter a valid problem. (\", paste0(aframe$problem, collapse = \",\"), \")\")\n    stop(error_msg)\n  }\n\n  solution <- aframe[which(aframe$problem == problem), \"answer\"]\n\n  ifelse(\n    all.equal(answer, solution, tolerance = 0.001) == TRUE,\n    \"Correct! Well done.\",\n    \"Incorrect! Good attempt. Let's try again?\"\n  )\n}","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-8","message":"true","fig-width":7,"dpi":72,"context":"setup","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":8},{"code":"student_solution = 11\n\ncheck(problem = \"1a\", answer = student_solution)","options":{"fig-cap":"","comment":"","out-width":"700px","label":"unnamed-chunk-9","message":"true","fig-width":7,"dpi":72,"context":"interactive","fig-height":5,"out-height":"","results":"markup","output":"true","classes":"","warning":"true"},"id":9}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"dpi":72,"label":"unnamed-chunk-1","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"setup","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"meaning_of_life = 42"},{"id":2,"options":{"dpi":72,"label":"unnamed-chunk-2","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"interactive","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"meaning_of_life"},{"id":3,"options":{"dpi":72,"label":"unnamed-chunk-3","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"output","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"mat2x2 <- matrix(c(1, 2, 3, 4), nrow = 2)\nmat2x2"},{"id":4,"options":{"dpi":72,"label":"unnamed-chunk-4","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"output","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"plot(\n  mpg ~ wt,\n  data = mtcars,\n  col = \"blue\", \n  xlab = \"Miles/(US) gallon\",\n  ylab = \"Weight (1000 lbs)\",\n  main = \"Miles per Gallon and Weight of Cars\",\n  sub = \"Source: 1974 Motor Trend US magazine.\"\n)"},{"id":5,"options":{"dpi":72,"label":"unnamed-chunk-5","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"setup","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"\n# Download a dataset\ndownload.file(\n  'https://raw.githubusercontent.com/coatless/raw-data/main/penguins.csv',\n  'penguins.csv'\n)\n\n# Read the data\ndf_penguins = read.csv(\"penguins.csv\")"},{"id":6,"options":{"dpi":72,"label":"unnamed-chunk-6","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"interactive","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"# Display the head of the data\nhead(df_penguins)"},{"id":7,"options":{"dpi":72,"label":"unnamed-chunk-7","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"output","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"\nmtcars2 <- within(mtcars, {\n   vs <- factor(vs, labels = c(\"V\", \"S\"))\n   am <- factor(am, labels = c(\"automatic\", \"manual\"))\n   cyl  <- ordered(cyl)\n   gear <- ordered(gear)\n   carb <- ordered(carb)\n})\n\nsummary(mtcars2)"},{"id":8,"options":{"dpi":72,"label":"unnamed-chunk-8","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"setup","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"answer_frame <- data.frame(\n  problem = c(\"1a\", \"1b\", \"2\"),\n  answer = c(10, 2, 3/16),\n  tol = c(0.001, 0, 1/32)\n)\n\ncheck <- function(problem, answer) {\n  aframe <- answer_frame\n  if(!problem %in% aframe$problem) {\n    error_msg <- paste0(\"Please enter a valid problem. (\", paste0(aframe$problem, collapse = \",\"), \")\")\n    stop(error_msg)\n  }\n\n  solution <- aframe[which(aframe$problem == problem), \"answer\"]\n\n  ifelse(\n    all.equal(answer, solution, tolerance = 0.001) == TRUE,\n    \"Correct! Well done.\",\n    \"Incorrect! Good attempt. Let's try again?\"\n  )\n}"},{"id":9,"options":{"dpi":72,"label":"unnamed-chunk-9","message":"true","comment":"","fig-cap":"","classes":"","output":"true","results":"markup","warning":"true","context":"interactive","out-width":"700px","out-height":"","fig-height":5,"fig-width":7},"code":"student_solution = 11\n\ncheck(problem = \"1a\", answer = student_solution)"}];
 
 </script>
 <script type="module">
@@ -624,7 +629,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
@@ -1440,7 +1445,7 @@ <h1 class="title">Hiding and Executing Code</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-meta-options.html b/qwebr-meta-options.html
index 5b1d1e96..a777d60a 100644
--- a/qwebr-meta-options.html
+++ b/qwebr-meta-options.html
@@ -395,7 +395,7 @@ <h1 class="title">Customization Options</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-release-notes.html b/qwebr-release-notes.html
index fb006c14..29d238d5 100644
--- a/qwebr-release-notes.html
+++ b/qwebr-release-notes.html
@@ -455,7 +455,7 @@ <h1 class="title">Release Notes</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-theming.html b/qwebr-theming.html
index 79b8109f..27a16148 100644
--- a/qwebr-theming.html
+++ b/qwebr-theming.html
@@ -383,7 +383,7 @@ <h1 class="title">Theming Elements</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-troubleshooting.html b/qwebr-troubleshooting.html
index 363b4dbc..6be7307d 100644
--- a/qwebr-troubleshooting.html
+++ b/qwebr-troubleshooting.html
@@ -373,7 +373,7 @@ <h1 class="title">Troubleshooting</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/qwebr-using-r-packages.html b/qwebr-using-r-packages.html
index d1c16d38..f9816893 100644
--- a/qwebr-using-r-packages.html
+++ b/qwebr-using-r-packages.html
@@ -123,6 +123,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -272,7 +277,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"options":{"message":"true","results":"markup","dpi":72,"warning":"true","context":"interactive","fig-width":7,"output":"true","out-height":"","out-width":"700px","fig-height":5,"comment":"","classes":"","label":"unnamed-chunk-1","fig-cap":""},"code":"# Determine the version of R being used by webR \nmajor_minor_version <- paste(\n  R.version$major, \n  strsplit(R.version$minor, \".\", fixed = TRUE)[[1L]][1L],\n  sep = \".\"\n)\n\n# Obtain a list of packages\nwebr_info <- as.data.frame(\n  available.packages(\n    contriburl = paste0(\n      \"https://repo.r-wasm.org/bin/emscripten/contrib/\", \n      major_minor_version\n    )\n  )\n)\n\n# Obtain the number of R packages built\nn_webr_pkgs <- nrow(webr_info)\n\n# Number of R packages available to webR\ncat(\"There are current\", n_webr_pkgs, \n    \"available to use with webR!\\n\")\n\n# Only view the first 6, there's a lot available!\nhead(webr_info[, c(\"Version\", \"License\")])","id":1},{"options":{"message":"true","results":"markup","dpi":72,"warning":"true","context":"interactive","fig-width":7,"output":"true","out-height":"","out-width":"700px","fig-height":5,"comment":"","classes":"","label":"unnamed-chunk-2","fig-cap":""},"code":"webr::install(\"ggplot2\")","id":2},{"options":{"message":"true","results":"markup","dpi":72,"warning":"true","context":"interactive","fig-width":7,"output":"true","out-height":"","out-width":"700px","fig-height":5,"comment":"","classes":"","label":"unnamed-chunk-3","fig-cap":""},"code":"library(\"ggplot2\")\n\nggplot(mpg, aes(displ, hwy, colour = class)) + \n  geom_point()","id":3}];
+globalThis.qwebrCellDetails = [{"code":"# Determine the version of R being used by webR \nmajor_minor_version <- paste(\n  R.version$major, \n  strsplit(R.version$minor, \".\", fixed = TRUE)[[1L]][1L],\n  sep = \".\"\n)\n\n# Obtain a list of packages\nwebr_info <- as.data.frame(\n  available.packages(\n    contriburl = paste0(\n      \"https://repo.r-wasm.org/bin/emscripten/contrib/\", \n      major_minor_version\n    )\n  )\n)\n\n# Obtain the number of R packages built\nn_webr_pkgs <- nrow(webr_info)\n\n# Number of R packages available to webR\ncat(\"There are current\", n_webr_pkgs, \n    \"available to use with webR!\\n\")\n\n# Only view the first 6, there's a lot available!\nhead(webr_info[, c(\"Version\", \"License\")])","options":{"context":"interactive","message":"true","dpi":72,"fig-height":5,"comment":"","classes":"","warning":"true","fig-cap":"","results":"markup","output":"true","out-width":"700px","fig-width":7,"out-height":"","label":"unnamed-chunk-1"},"id":1},{"code":"webr::install(\"ggplot2\")","options":{"context":"interactive","message":"true","dpi":72,"fig-height":5,"comment":"","classes":"","warning":"true","fig-cap":"","results":"markup","output":"true","out-width":"700px","fig-width":7,"out-height":"","label":"unnamed-chunk-2"},"id":2},{"code":"library(\"ggplot2\")\n\nggplot(mpg, aes(displ, hwy, colour = class)) + \n  geom_point()","options":{"context":"interactive","message":"true","dpi":72,"fig-height":5,"comment":"","classes":"","warning":"true","fig-cap":"","results":"markup","output":"true","out-width":"700px","fig-width":7,"out-height":"","label":"unnamed-chunk-3"},"id":3}];
 
 </script>
 <script type="module">
@@ -624,7 +629,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
@@ -1435,7 +1440,7 @@ <h1 class="title">Using R Packages</h1>
     <div>
     <div class="quarto-title-meta-heading">Modified</div>
     <div class="quarto-title-meta-contents">
-      <p class="date-modified">January 31, 2024</p>
+      <p class="date-modified">February 2, 2024</p>
     </div>
   </div>
     
diff --git a/tests/index.html b/tests/index.html
index 3108b0e3..eab6779a 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"out-width":"700px","results":"markup","context":"interactive","message":"true","label":"unnamed-chunk-1","fig-width":7,"fig-height":5,"dpi":72,"warning":"true","comment":"","out-height":"","classes":"","output":"true","fig-cap":""},"code":"print(\"Welcome to behind the scenes of quarto-webr!\")"}];
+globalThis.qwebrCellDetails = [{"options":{"label":"unnamed-chunk-1","output":"true","warning":"true","fig-width":7,"context":"interactive","comment":"","fig-cap":"","out-height":"","results":"markup","classes":"","dpi":72,"fig-height":5,"message":"true","out-width":"700px"},"code":"print(\"Welcome to behind the scenes of quarto-webr!\")","id":1}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-escape-html-output-characters.html b/tests/qwebr-test-escape-html-output-characters.html
index 17c3664e..4e05c6f8 100644
--- a/tests/qwebr-test-escape-html-output-characters.html
+++ b/tests/qwebr-test-escape-html-output-characters.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"options":{"dpi":72,"fig-cap":"","context":"interactive","message":"true","label":"unnamed-chunk-1","fig-width":7,"comment":"","fig-height":5,"warning":"true","out-width":"700px","out-height":"","classes":"","results":"markup","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()","id":1},{"options":{"dpi":72,"fig-cap":"","context":"output","message":"true","label":"unnamed-chunk-2","fig-width":7,"comment":"","fig-height":5,"warning":"true","out-width":"700px","out-height":"","classes":"","results":"markup","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()","id":2},{"options":{"dpi":72,"fig-cap":"","context":"output","message":"true","label":"unnamed-chunk-3","fig-width":7,"comment":"","fig-height":5,"warning":"true","out-width":"700px","out-height":"","classes":"","results":"asis","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()","id":3},{"options":{"dpi":72,"fig-cap":"","context":"output","message":"true","label":"unnamed-chunk-4","fig-width":7,"comment":"","fig-height":5,"warning":"true","out-width":"700px","out-height":"","classes":"","results":"markup","output":"asis"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()","id":4}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"results":"markup","out-width":"700px","dpi":72,"fig-width":7,"fig-height":5,"classes":"","warning":"true","out-height":"","label":"unnamed-chunk-1","message":"true","comment":"","fig-cap":"","context":"interactive","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()"},{"id":2,"options":{"results":"markup","out-width":"700px","dpi":72,"fig-width":7,"fig-height":5,"classes":"","warning":"true","out-height":"","label":"unnamed-chunk-2","message":"true","comment":"","fig-cap":"","context":"output","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()"},{"id":3,"options":{"results":"asis","out-width":"700px","dpi":72,"fig-width":7,"fig-height":5,"classes":"","warning":"true","out-height":"","label":"unnamed-chunk-3","message":"true","comment":"","fig-cap":"","context":"output","output":"true"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()"},{"id":4,"options":{"results":"markup","out-width":"700px","dpi":72,"fig-width":7,"fig-height":5,"classes":"","warning":"true","out-height":"","label":"unnamed-chunk-4","message":"true","comment":"","fig-cap":"","context":"output","output":"asis"},"code":"# This function converts a markdown link into HTML\n\"[Posit](https://posit.co)\" |> (\\(.) {\n  text <- sub(\"\\\\].*\", \"\", sub(\".*\\\\[\", \"\", .))\n  url <- sub(\"\\\\).*\", \"\", sub(\".*\\\\(\", \"\", .))\n  \n  writeLines(noquote(paste0('<a href=\"', url, '\" target = \"_blank\">', text, '</a>')))\n})()"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-help-documentation.html b/tests/qwebr-test-help-documentation.html
index 7e74e75f..cf51cffd 100644
--- a/tests/qwebr-test-help-documentation.html
+++ b/tests/qwebr-test-help-documentation.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"?mean","options":{"output":"true","message":"true","classes":"","context":"interactive","results":"markup","comment":"","out-height":"","warning":"true","fig-height":5,"out-width":"700px","fig-width":7,"label":"unnamed-chunk-1","dpi":72,"fig-cap":""},"id":1},{"code":"?sd","options":{"output":"true","message":"true","classes":"","context":"output","results":"markup","comment":"","out-height":"","warning":"true","fig-height":5,"out-width":"700px","fig-width":7,"label":"unnamed-chunk-2","dpi":72,"fig-cap":""},"id":2}];
+globalThis.qwebrCellDetails = [{"options":{"context":"interactive","results":"markup","dpi":72,"label":"unnamed-chunk-1","output":"true","classes":"","out-width":"700px","warning":"true","comment":"","fig-cap":"","message":"true","fig-height":5,"out-height":"","fig-width":7},"id":1,"code":"?mean"},{"options":{"context":"output","results":"markup","dpi":72,"label":"unnamed-chunk-2","output":"true","classes":"","out-width":"700px","warning":"true","comment":"","fig-cap":"","message":"true","fig-height":5,"out-height":"","fig-width":7},"id":2,"code":"?sd"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-interactive-with-keyboard-shortcut.html b/tests/qwebr-test-interactive-with-keyboard-shortcut.html
index 288707b7..d94ceed4 100644
--- a/tests/qwebr-test-interactive-with-keyboard-shortcut.html
+++ b/tests/qwebr-test-interactive-with-keyboard-shortcut.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"options":{"comment":"","dpi":72,"fig-cap":"","output":"true","fig-width":7,"context":"interactive","out-width":"700px","out-height":"","fig-height":5,"message":"true","label":"unnamed-chunk-1","classes":"","warning":"true","results":"markup"},"code":"-3 + 5\n\nprint(\"Hello quarto-webr World!\")","id":1}];
+globalThis.qwebrCellDetails = [{"code":"-3 + 5\n\nprint(\"Hello quarto-webr World!\")","id":1,"options":{"warning":"true","message":"true","fig-width":7,"fig-cap":"","label":"unnamed-chunk-1","context":"interactive","out-width":"700px","classes":"","out-height":"","output":"true","results":"markup","dpi":72,"comment":"","fig-height":5}}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-internal-cell.html b/tests/qwebr-test-internal-cell.html
index ee4e0d45..f77ab5a3 100644
--- a/tests/qwebr-test-internal-cell.html
+++ b/tests/qwebr-test-internal-cell.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"1 + 1","options":{"fig-height":5,"results":"markup","fig-cap":"","context":"interactive","dpi":72,"warning":"true","output":"true","comment":"","fig-width":7,"out-width":"700px","message":"true","out-height":"","classes":"","label":"unnamed-chunk-1"}},{"id":2,"code":"x = c(1, 5, 3, -2)\ny = c(-5, 8, 9, 4)","options":{"fig-height":5,"results":"markup","fig-cap":"","context":"setup","dpi":72,"warning":"true","output":"true","comment":"","fig-width":7,"out-width":"700px","message":"true","out-height":"","classes":"","label":"unnamed-chunk-2"}},{"id":3,"code":"cat(\"x: \")\nprint(x)\n\ncat(\"y: \")\nprint(y)\n\nplot(x, y)","options":{"fig-height":5,"results":"markup","fig-cap":"","context":"output","dpi":72,"warning":"true","output":"true","comment":"","fig-width":7,"out-width":"700px","message":"true","out-height":"","classes":"","label":"unnamed-chunk-3"}}];
+globalThis.qwebrCellDetails = [{"options":{"out-height":"","warning":"true","out-width":"700px","dpi":72,"context":"interactive","message":"true","fig-width":7,"results":"markup","fig-height":5,"label":"unnamed-chunk-1","comment":"","classes":"","output":"true","fig-cap":""},"id":1,"code":"1 + 1"},{"options":{"out-height":"","warning":"true","out-width":"700px","dpi":72,"context":"setup","message":"true","fig-width":7,"results":"markup","fig-height":5,"label":"unnamed-chunk-2","comment":"","classes":"","output":"true","fig-cap":""},"id":2,"code":"x = c(1, 5, 3, -2)\ny = c(-5, 8, 9, 4)"},{"options":{"out-height":"","warning":"true","out-width":"700px","dpi":72,"context":"output","message":"true","fig-width":7,"results":"markup","fig-height":5,"label":"unnamed-chunk-3","comment":"","classes":"","output":"true","fig-cap":""},"id":3,"code":"cat(\"x: \")\nprint(x)\n\ncat(\"y: \")\nprint(y)\n\nplot(x, y)"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-multiple-cells.html b/tests/qwebr-test-multiple-cells.html
index 2296d8a7..8cd53d7a 100644
--- a/tests/qwebr-test-multiple-cells.html
+++ b/tests/qwebr-test-multiple-cells.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"1 + 1 ","id":1,"options":{"message":"true","out-width":"700px","context":"interactive","results":"markup","classes":"","out-height":"","comment":"","dpi":72,"warning":"true","label":"unnamed-chunk-1","fig-height":5,"fig-width":7,"fig-cap":"","output":"true"}},{"code":"plot(pressure)","id":2,"options":{"message":"true","out-width":"700px","context":"interactive","results":"markup","classes":"","out-height":"","comment":"","dpi":72,"warning":"true","label":"unnamed-chunk-2","fig-height":5,"fig-width":7,"fig-cap":"","output":"true"}},{"code":"1 + 1 ","id":3,"options":{"message":"true","out-width":"700px","context":"output","results":"markup","classes":"","out-height":"","comment":"","dpi":72,"warning":"true","label":"unnamed-chunk-3","fig-height":5,"fig-width":7,"fig-cap":"","output":"true"}},{"code":"plot(pressure)","id":4,"options":{"message":"true","out-width":"700px","context":"output","results":"markup","classes":"","out-height":"","comment":"","dpi":72,"warning":"true","label":"unnamed-chunk-4","fig-height":5,"fig-width":7,"fig-cap":"","output":"true"}}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"output":"true","classes":"","warning":"true","context":"interactive","fig-width":7,"results":"markup","message":"true","comment":"","label":"unnamed-chunk-1","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"1 + 1 "},{"id":2,"options":{"output":"true","classes":"","warning":"true","context":"interactive","fig-width":7,"results":"markup","message":"true","comment":"","label":"unnamed-chunk-2","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"plot(pressure)"},{"id":3,"options":{"output":"true","classes":"","warning":"true","context":"output","fig-width":7,"results":"markup","message":"true","comment":"","label":"unnamed-chunk-3","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"1 + 1 "},{"id":4,"options":{"output":"true","classes":"","warning":"true","context":"output","fig-width":7,"results":"markup","message":"true","comment":"","label":"unnamed-chunk-4","dpi":72,"fig-cap":"","fig-height":5,"out-height":"","out-width":"700px"},"code":"plot(pressure)"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-non-interactive-chained-cells.html b/tests/qwebr-test-non-interactive-chained-cells.html
index fdd552b9..c764b7cb 100644
--- a/tests/qwebr-test-non-interactive-chained-cells.html
+++ b/tests/qwebr-test-non-interactive-chained-cells.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"fig-height":5,"output":"true","message":"true","results":"markup","dpi":72,"label":"unnamed-chunk-1","classes":"","comment":"","context":"setup","fig-width":7,"fig-cap":"","out-width":"700px","warning":"true","out-height":""},"code":"g <- ggplot(mtcars, aes(x = wt, y = mpg)) \n\nSys.sleep(0.25)"},{"id":2,"options":{"fig-height":5,"output":"true","message":"true","results":"markup","dpi":72,"label":"unnamed-chunk-2","classes":"","comment":"","context":"output","fig-width":7,"fig-cap":"","out-width":"700px","warning":"true","out-height":""},"code":"g + geom_point()\n\nSys.sleep(0.25)"},{"id":3,"options":{"fig-height":5,"output":"true","message":"true","results":"markup","dpi":72,"label":"unnamed-chunk-3","classes":"","comment":"","context":"output","fig-width":7,"fig-cap":"","out-width":"700px","warning":"true","out-height":""},"code":"g + geom_point(aes(colour = factor(cyl)))\nSys.sleep(0.25)"},{"id":4,"options":{"fig-height":5,"output":"true","message":"true","results":"markup","dpi":72,"label":"unnamed-chunk-4","classes":"","comment":"","context":"interactive","fig-width":7,"fig-cap":"","out-width":"700px","warning":"true","out-height":""},"code":"g"}];
+globalThis.qwebrCellDetails = [{"code":"g <- ggplot(mtcars, aes(x = wt, y = mpg)) \n\nSys.sleep(0.25)","options":{"label":"unnamed-chunk-1","fig-cap":"","results":"markup","classes":"","out-width":"700px","dpi":72,"warning":"true","fig-width":7,"message":"true","context":"setup","fig-height":5,"comment":"","output":"true","out-height":""},"id":1},{"code":"g + geom_point()\n\nSys.sleep(0.25)","options":{"label":"unnamed-chunk-2","fig-cap":"","results":"markup","classes":"","out-width":"700px","dpi":72,"warning":"true","fig-width":7,"message":"true","context":"output","fig-height":5,"comment":"","output":"true","out-height":""},"id":2},{"code":"g + geom_point(aes(colour = factor(cyl)))\nSys.sleep(0.25)","options":{"label":"unnamed-chunk-3","fig-cap":"","results":"markup","classes":"","out-width":"700px","dpi":72,"warning":"true","fig-width":7,"message":"true","context":"output","fig-height":5,"comment":"","output":"true","out-height":""},"id":3},{"code":"g","options":{"label":"unnamed-chunk-4","fig-cap":"","results":"markup","classes":"","out-width":"700px","dpi":72,"warning":"true","fig-width":7,"message":"true","context":"interactive","fig-height":5,"comment":"","output":"true","out-height":""},"id":4}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-non-interactive-context-with-packages.html b/tests/qwebr-test-non-interactive-context-with-packages.html
index c858b5cb..9cdbb866 100644
--- a/tests/qwebr-test-non-interactive-context-with-packages.html
+++ b/tests/qwebr-test-non-interactive-context-with-packages.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"library(\"ggplot2\")\ng <- ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()\ng","options":{"warning":"true","context":"output","comment":"","message":"true","classes":"","output":"true","fig-width":7,"dpi":72,"results":"markup","fig-height":5,"label":"unnamed-chunk-1","out-width":"700px","fig-cap":"","out-height":""}},{"id":2,"code":"g + aes(color = factor(cyl))","options":{"warning":"true","context":"interactive","comment":"","message":"true","classes":"","output":"true","fig-width":7,"dpi":72,"results":"markup","fig-height":5,"label":"unnamed-chunk-2","out-width":"700px","fig-cap":"","out-height":""}}];
+globalThis.qwebrCellDetails = [{"options":{"fig-cap":"","label":"unnamed-chunk-1","output":"true","results":"markup","out-width":"700px","warning":"true","dpi":72,"message":"true","comment":"","out-height":"","fig-height":5,"context":"output","fig-width":7,"classes":""},"id":1,"code":"library(\"ggplot2\")\ng <- ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()\ng"},{"options":{"fig-cap":"","label":"unnamed-chunk-2","output":"true","results":"markup","out-width":"700px","warning":"true","dpi":72,"message":"true","comment":"","out-height":"","fig-height":5,"context":"interactive","fig-width":7,"classes":""},"id":2,"code":"g + aes(color = factor(cyl))"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-non-interactive-setup-with-packages-and-interactive.html b/tests/qwebr-test-non-interactive-setup-with-packages-and-interactive.html
index 415bc615..7543c796 100644
--- a/tests/qwebr-test-non-interactive-setup-with-packages-and-interactive.html
+++ b/tests/qwebr-test-non-interactive-setup-with-packages-and-interactive.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"s <- 1000\ntheme_set(theme_minimal())\nblue <- \"#327291\"","id":1,"options":{"message":"true","fig-cap":"","warning":"true","results":"markup","fig-height":5,"output":"true","context":"setup","dpi":72,"comment":"","fig-width":7,"out-width":"700px","out-height":"","classes":"","label":"unnamed-chunk-1"}},{"code":"mean <- 5\nsd <- 2\nn <- 100\n\ndata <- tibble(x = rnorm(n = n, mean = mean, sd = sd))\n\nggplot(data, aes(x = x)) +\n  geom_histogram(\n    color = \"gray20\",\n    linewidth = 0.25,\n    fill = blue,\n    alpha = .85\n  )","id":2,"options":{"message":"true","fig-cap":"","warning":"true","results":"markup","fig-height":5,"output":"true","context":"interactive","dpi":72,"comment":"","fig-width":7,"out-width":"700px","out-height":"","classes":"","label":"unnamed-chunk-2"}}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"comment":"","context":"setup","warning":"true","fig-width":7,"output":"true","out-width":"700px","fig-height":5,"results":"markup","message":"true","dpi":72,"fig-cap":"","classes":"","label":"unnamed-chunk-1","out-height":""},"code":"s <- 1000\ntheme_set(theme_minimal())\nblue <- \"#327291\""},{"id":2,"options":{"comment":"","context":"interactive","warning":"true","fig-width":7,"output":"true","out-width":"700px","fig-height":5,"results":"markup","message":"true","dpi":72,"fig-cap":"","classes":"","label":"unnamed-chunk-2","out-height":""},"code":"mean <- 5\nsd <- 2\nn <- 100\n\ndata <- tibble(x = rnorm(n = n, mean = mean, sd = sd))\n\nggplot(data, aes(x = x)) +\n  geom_histogram(\n    color = \"gray20\",\n    linewidth = 0.25,\n    fill = blue,\n    alpha = .85\n  )"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-non-interactive-setup-with-packages.html b/tests/qwebr-test-non-interactive-setup-with-packages.html
index a01e1212..d8e1ee0c 100644
--- a/tests/qwebr-test-non-interactive-setup-with-packages.html
+++ b/tests/qwebr-test-non-interactive-setup-with-packages.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"\nnew_mtcars <- mtcars |>\n  tibble::rownames_to_column(var = \"car\") |>\n  tibble::as_tibble() |>\n  dplyr::select(car, cyl, disp, wt) |>\n  dplyr::mutate(wt = dplyr::case_when(\n    wt < 2 ~ -wt,\n    TRUE ~ wt))","id":1,"options":{"context":"setup","fig-width":7,"out-height":"","label":"spike-data","fig-height":5,"out-width":"700px","message":"true","comment":"","output":"true","fig-cap":"","dpi":72,"classes":"","results":"markup","warning":"true"}},{"code":"new_mtcars","id":2,"options":{"context":"interactive","fig-width":7,"out-height":"","label":"spike-data","fig-height":5,"out-width":"700px","message":"true","comment":"","output":"true","fig-cap":"","dpi":72,"classes":"","results":"markup","warning":"true"}}];
+globalThis.qwebrCellDetails = [{"code":"\nnew_mtcars <- mtcars |>\n  tibble::rownames_to_column(var = \"car\") |>\n  tibble::as_tibble() |>\n  dplyr::select(car, cyl, disp, wt) |>\n  dplyr::mutate(wt = dplyr::case_when(\n    wt < 2 ~ -wt,\n    TRUE ~ wt))","id":1,"options":{"results":"markup","fig-width":7,"classes":"","comment":"","dpi":72,"warning":"true","fig-height":5,"output":"true","out-height":"","label":"spike-data","message":"true","out-width":"700px","context":"setup","fig-cap":""}},{"code":"new_mtcars","id":2,"options":{"results":"markup","fig-width":7,"classes":"","comment":"","dpi":72,"warning":"true","fig-height":5,"output":"true","out-height":"","label":"spike-data","message":"true","out-width":"700px","context":"interactive","fig-cap":""}}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-output-classes.html b/tests/qwebr-test-output-classes.html
index 5d527d4f..9fa29cef 100644
--- a/tests/qwebr-test-output-classes.html
+++ b/tests/qwebr-test-output-classes.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":1,"options":{"fig-width":7,"context":"interactive","results":"markup","comment":"","label":"unnamed-chunk-1","fig-height":5,"warning":"true","output":"true","classes":"","dpi":72,"out-width":"700px","message":"true","fig-cap":"","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":2,"options":{"fig-width":7,"context":"output","results":"markup","comment":"","label":"unnamed-chunk-2","fig-height":5,"warning":"true","output":"true","classes":"","dpi":72,"out-width":"700px","message":"true","fig-cap":"","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":3,"options":{"fig-width":7,"context":"output","results":"markup","comment":"## ","label":"unnamed-chunk-3","fig-height":5,"warning":"true","output":"true","classes":"","dpi":72,"out-width":"700px","message":"true","fig-cap":"","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":4,"options":{"fig-width":7,"context":"output","results":"markup","comment":"","label":"unnamed-chunk-4","fig-height":5,"warning":"true","output":"true","classes":"toad green","dpi":72,"out-width":"700px","message":"true","fig-cap":"","out-height":""}}];
+globalThis.qwebrCellDetails = [{"options":{"output":"true","message":"true","comment":"","out-width":"700px","dpi":72,"results":"markup","classes":"","label":"unnamed-chunk-1","fig-height":5,"context":"interactive","fig-cap":"","warning":"true","out-height":"","fig-width":7},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":1},{"options":{"output":"true","message":"true","comment":"","out-width":"700px","dpi":72,"results":"markup","classes":"","label":"unnamed-chunk-2","fig-height":5,"context":"output","fig-cap":"","warning":"true","out-height":"","fig-width":7},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":2},{"options":{"output":"true","message":"true","comment":"## ","out-width":"700px","dpi":72,"results":"markup","classes":"","label":"unnamed-chunk-3","fig-height":5,"context":"output","fig-cap":"","warning":"true","out-height":"","fig-width":7},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":3},{"options":{"output":"true","message":"true","comment":"","out-width":"700px","dpi":72,"results":"markup","classes":"toad green","label":"unnamed-chunk-4","fig-height":5,"context":"output","fig-cap":"","warning":"true","out-height":"","fig-width":7},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":4}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-output-graph.html b/tests/qwebr-test-output-graph.html
index 2873a323..25fa7ed9 100644
--- a/tests/qwebr-test-output-graph.html
+++ b/tests/qwebr-test-output-graph.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"plot(pressure)","id":1,"options":{"warning":"true","output":"true","fig-cap":"","context":"interactive","results":"markup","message":"true","label":"unnamed-chunk-1","out-height":"","fig-width":7,"out-width":"700px","fig-height":5,"classes":"","comment":"","dpi":72}},{"code":"plot(pressure)","id":2,"options":{"warning":"true","output":"true","fig-cap":"","context":"interactive","results":"markup","message":"true","label":"unnamed-chunk-2","out-height":"","fig-width":"4","out-width":"600px","fig-height":"6","classes":"","comment":"","dpi":72}},{"code":"plot(pressure)","id":3,"options":{"warning":"true","output":"true","fig-cap":"Testing out figure captions","context":"output","results":"markup","message":"true","label":"unnamed-chunk-3","out-height":"","fig-width":7,"out-width":"700px","fig-height":5,"classes":"","comment":"","dpi":72}},{"code":"plot(pressure)","id":4,"options":{"warning":"true","output":"true","fig-cap":"","context":"output","results":"markup","message":"true","label":"unnamed-chunk-4","out-height":"","fig-width":"6","out-width":"500px","fig-height":"5","classes":"","comment":"","dpi":72}},{"code":"plot(pressure)","id":5,"options":{"warning":"true","output":"true","fig-cap":"","context":"output","results":"markup","message":"true","label":"unnamed-chunk-5","out-height":"500px","fig-width":"6","out-width":"500px","fig-height":"5","classes":"","comment":"","dpi":72}}];
+globalThis.qwebrCellDetails = [{"options":{"label":"unnamed-chunk-1","output":"true","classes":"","fig-cap":"","warning":"true","results":"markup","message":"true","out-height":"","context":"interactive","comment":"","dpi":72,"fig-width":7,"fig-height":5,"out-width":"700px"},"code":"plot(pressure)","id":1},{"options":{"label":"unnamed-chunk-2","output":"true","classes":"","fig-cap":"","warning":"true","results":"markup","message":"true","out-height":"","context":"interactive","comment":"","dpi":72,"fig-width":"4","fig-height":"6","out-width":"600px"},"code":"plot(pressure)","id":2},{"options":{"label":"unnamed-chunk-3","output":"true","classes":"","fig-cap":"Testing out figure captions","warning":"true","results":"markup","message":"true","out-height":"","context":"output","comment":"","dpi":72,"fig-width":7,"fig-height":5,"out-width":"700px"},"code":"plot(pressure)","id":3},{"options":{"label":"unnamed-chunk-4","output":"true","classes":"","fig-cap":"","warning":"true","results":"markup","message":"true","out-height":"","context":"output","comment":"","dpi":72,"fig-width":"6","fig-height":"5","out-width":"500px"},"code":"plot(pressure)","id":4},{"options":{"label":"unnamed-chunk-5","output":"true","classes":"","fig-cap":"","warning":"true","results":"markup","message":"true","out-height":"500px","context":"output","comment":"","dpi":72,"fig-width":"6","fig-height":"5","out-width":"500px"},"code":"plot(pressure)","id":5}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-output-stderr-result-suppression.html b/tests/qwebr-test-output-stderr-result-suppression.html
index e7831925..c00c320d 100644
--- a/tests/qwebr-test-output-stderr-result-suppression.html
+++ b/tests/qwebr-test-output-stderr-result-suppression.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":1,"options":{"message":"true","label":"unnamed-chunk-1","fig-cap":"","dpi":72,"output":"true","context":"interactive","fig-width":7,"results":"hide","comment":"","classes":"","fig-height":5,"warning":"true","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":2,"options":{"message":"true","label":"unnamed-chunk-2","fig-cap":"","dpi":72,"output":"true","context":"interactive","fig-width":7,"results":"markup","comment":"","classes":"","fig-height":5,"warning":"false","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":3,"options":{"message":"false","label":"unnamed-chunk-3","fig-cap":"","dpi":72,"output":"true","context":"interactive","fig-width":7,"results":"markup","comment":"","classes":"","fig-height":5,"warning":"true","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":4,"options":{"message":"true","label":"unnamed-chunk-4","fig-cap":"","dpi":72,"output":"true","context":"output","fig-width":7,"results":"hide","comment":"","classes":"","fig-height":5,"warning":"true","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":5,"options":{"message":"true","label":"unnamed-chunk-5","fig-cap":"","dpi":72,"output":"false","context":"output","fig-width":7,"results":"markup","comment":"","classes":"","fig-height":5,"warning":"true","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":6,"options":{"message":"true","label":"unnamed-chunk-6","fig-cap":"","dpi":72,"output":"true","context":"output","fig-width":7,"results":"markup","comment":"","classes":"","fig-height":5,"warning":"false","out-width":"700px","out-height":""}},{"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":7,"options":{"message":"false","label":"unnamed-chunk-7","fig-cap":"","dpi":72,"output":"true","context":"output","fig-width":7,"results":"markup","comment":"","classes":"","fig-height":5,"warning":"true","out-width":"700px","out-height":""}}];
+globalThis.qwebrCellDetails = [{"options":{"dpi":72,"out-width":"700px","classes":"","context":"interactive","message":"true","label":"unnamed-chunk-1","comment":"","fig-width":7,"out-height":"","warning":"true","output":"true","results":"hide","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":1},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"interactive","message":"true","label":"unnamed-chunk-2","comment":"","fig-width":7,"out-height":"","warning":"false","output":"true","results":"markup","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":2},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"interactive","message":"false","label":"unnamed-chunk-3","comment":"","fig-width":7,"out-height":"","warning":"true","output":"true","results":"markup","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":3},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"output","message":"true","label":"unnamed-chunk-4","comment":"","fig-width":7,"out-height":"","warning":"true","output":"true","results":"hide","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":4},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"output","message":"true","label":"unnamed-chunk-5","comment":"","fig-width":7,"out-height":"","warning":"true","output":"false","results":"markup","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":5},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"output","message":"true","label":"unnamed-chunk-6","comment":"","fig-width":7,"out-height":"","warning":"false","output":"true","results":"markup","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":6},{"options":{"dpi":72,"out-width":"700px","classes":"","context":"output","message":"false","label":"unnamed-chunk-7","comment":"","fig-width":7,"out-height":"","warning":"true","output":"true","results":"markup","fig-height":5,"fig-cap":""},"code":"cat(\"Display letters: \")\nprint(letters[1:5])\n\nwarning(\"This is a warning message!\")\n\nstop(\"This is a hard error message!\")","id":7}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-packages-autoload.html b/tests/qwebr-test-packages-autoload.html
index 925a7f7d..120ea9ff 100644
--- a/tests/qwebr-test-packages-autoload.html
+++ b/tests/qwebr-test-packages-autoload.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"# Must call the library statement\nlibrary('ggplot2')","id":1,"options":{"out-height":"","label":"unnamed-chunk-1","comment":"","classes":"","output":"true","fig-cap":"","context":"interactive","message":"true","fig-width":7,"dpi":72,"warning":"true","out-width":"700px","results":"markup","fig-height":5}}];
+globalThis.qwebrCellDetails = [{"options":{"fig-cap":"","fig-width":7,"results":"markup","output":"true","out-width":"700px","warning":"true","dpi":72,"comment":"","message":"true","out-height":"","fig-height":5,"classes":"","label":"unnamed-chunk-1","context":"interactive"},"code":"# Must call the library statement\nlibrary('ggplot2')","id":1}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-packages-multi.html b/tests/qwebr-test-packages-multi.html
index fc94f7ad..bf6fade6 100644
--- a/tests/qwebr-test-packages-multi.html
+++ b/tests/qwebr-test-packages-multi.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"code":"ggplot()","options":{"fig-height":5,"classes":"","fig-cap":"","out-width":"700px","message":"true","label":"unnamed-chunk-1","results":"markup","dpi":72,"context":"interactive","output":"true","warning":"true","comment":"","out-height":"","fig-width":7},"id":1}];
+globalThis.qwebrCellDetails = [{"options":{"output":"true","label":"unnamed-chunk-1","context":"interactive","dpi":72,"fig-width":7,"out-width":"700px","out-height":"","fig-cap":"","warning":"true","classes":"","comment":"","results":"markup","fig-height":5,"message":"true"},"id":1,"code":"ggplot()"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-repo-key.html b/tests/qwebr-test-repo-key.html
index c850bcba..4f484975 100644
--- a/tests/qwebr-test-repo-key.html
+++ b/tests/qwebr-test-repo-key.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -205,7 +210,7 @@
 // Document level settings ----
 
 // Determine if we need to install R packages
-globalThis.qwebrInstallRPackagesList = ['demorwasmbinary', 'visualize'];
+globalThis.qwebrInstallRPackagesList = ['demorwasmbinary', 'visualize', 'fakepkg'];
 
 // Specify possible locations to search for the repository
 globalThis.qwebrPackageRepoURLS = ['https://tutorials.thecoatlessprofessor.com/webr-unified-gh-workflow/', 'https://repo.r-wasm.org/'];
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"results":"markup","fig-cap":"","warning":"true","out-width":"700px","context":"output","comment":"","message":"true","fig-width":7,"output":"true","classes":"","out-height":"","dpi":72,"fig-height":5,"label":"unnamed-chunk-1"},"code":"\nprint(paste0(\"Check if we are in webR with non-CRAN package demorwasmbinary: \", demorwasmbinary::in_webr()))\n\nprint(\"Creating a graph with a package on CRAN\")\nvisualize::visualize.norm()"}];
+globalThis.qwebrCellDetails = [{"id":1,"options":{"fig-width":7,"fig-cap":"","results":"markup","message":"true","output":"true","comment":"","context":"output","dpi":72,"fig-height":5,"warning":"true","label":"unnamed-chunk-1","out-width":"700px","out-height":"","classes":""},"code":"\nprint(paste0(\"Check if we are in webR with non-CRAN package demorwasmbinary: \", demorwasmbinary::in_webr()))\n\nprint(\"Creating a graph with a package on CRAN\")\nvisualize::visualize.norm()"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-revealjs.html b/tests/qwebr-test-revealjs.html
index 8188a1f1..0388e226 100644
--- a/tests/qwebr-test-revealjs.html
+++ b/tests/qwebr-test-revealjs.html
@@ -331,6 +331,11 @@
     width: 100%;
     display: flex;
     justify-content: space-between;
+    box-sizing: border-box;
+  }
+
+  .qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+    display: flex;
   }
 
   .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -480,7 +485,7 @@
   };
 
   // Store cell data
-  globalThis.qwebrCellDetails = [{"code":"fit = lm(mpg ~ wt, data = mtcars)\n\nsummary(fit)","id":1,"options":{"out-height":"","out-width":"700px","context":"interactive","classes":"","warning":"true","results":"markup","comment":"","message":"true","fig-cap":"","output":"true","fig-height":5,"dpi":72,"label":"unnamed-chunk-1","fig-width":7}},{"code":"print(\"Hello quarto-webr RevealJS world!\")\n\n3 + 5","id":2,"options":{"out-height":"","out-width":"700px","context":"interactive","classes":"","warning":"true","results":"markup","comment":"","message":"true","fig-cap":"","output":"true","fig-height":5,"dpi":72,"label":"unnamed-chunk-2","fig-width":7}},{"code":"message(\"Hello World!\")","id":3,"options":{"out-height":"","out-width":"700px","context":"interactive","classes":"","warning":"true","results":"markup","comment":"","message":"true","fig-cap":"","output":"true","fig-height":5,"dpi":72,"label":"unnamed-chunk-3","fig-width":7}},{"code":"2 + 3","id":4,"options":{"out-height":"","out-width":"700px","context":"interactive","classes":"","warning":"true","results":"markup","comment":"","message":"true","fig-cap":"","output":"true","fig-height":5,"dpi":72,"label":"unnamed-chunk-4","fig-width":7}}];
+  globalThis.qwebrCellDetails = [{"code":"fit = lm(mpg ~ wt, data = mtcars)\n\nsummary(fit)","options":{"dpi":72,"results":"markup","comment":"","message":"true","out-width":"700px","output":"true","label":"unnamed-chunk-1","classes":"","fig-cap":"","out-height":"","fig-width":7,"warning":"true","context":"interactive","fig-height":5},"id":1},{"code":"print(\"Hello quarto-webr RevealJS world!\")\n\n3 + 5","options":{"dpi":72,"results":"markup","comment":"","message":"true","out-width":"700px","output":"true","label":"unnamed-chunk-2","classes":"","fig-cap":"","out-height":"","fig-width":7,"warning":"true","context":"interactive","fig-height":5},"id":2},{"code":"message(\"Hello World!\")","options":{"dpi":72,"results":"markup","comment":"","message":"true","out-width":"700px","output":"true","label":"unnamed-chunk-3","classes":"","fig-cap":"","out-height":"","fig-width":7,"warning":"true","context":"interactive","fig-height":5},"id":3},{"code":"2 + 3","options":{"dpi":72,"results":"markup","comment":"","message":"true","out-width":"700px","output":"true","label":"unnamed-chunk-4","classes":"","fig-cap":"","out-height":"","fig-width":7,"warning":"true","context":"interactive","fig-height":5},"id":4}];
 
   </script>
   <script type="module">
@@ -832,7 +837,7 @@
 
   // Function to load a single package
   async function qwebrLoadRPackage(packageName) {
-    await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+    await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
   }
 
   // Generic function to process R packages
diff --git a/tests/qwebr-test-service-worker.html b/tests/qwebr-test-service-worker.html
index 261ea8f5..201e5947 100644
--- a/tests/qwebr-test-service-worker.html
+++ b/tests/qwebr-test-service-worker.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"fig-cap":"","fig-height":5,"results":"markup","comment":"","context":"interactive","classes":"","output":"true","message":"true","warning":"true","dpi":72,"label":"unnamed-chunk-1","out-width":"700px","fig-width":7,"out-height":""},"code":"-3 + 5\n\nprint(\"Hello service worker model!\")"}];
+globalThis.qwebrCellDetails = [{"options":{"context":"interactive","message":"true","out-height":"","out-width":"700px","fig-height":5,"warning":"true","results":"markup","fig-cap":"","comment":"","dpi":72,"output":"true","fig-width":7,"classes":"","label":"unnamed-chunk-1"},"code":"-3 + 5\n\nprint(\"Hello service worker model!\")","id":1}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-shim-install.html b/tests/qwebr-test-shim-install.html
index e205124f..3daf0126 100644
--- a/tests/qwebr-test-shim-install.html
+++ b/tests/qwebr-test-shim-install.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"options":{"context":"output","out-width":"700px","output":"true","message":"true","fig-width":7,"warning":"true","dpi":72,"fig-cap":"","results":"markup","out-height":"","fig-height":5,"comment":"","classes":"","label":"unnamed-chunk-1"},"code":"\ncheck_pkg_installed <- function(x) {\n    x %in% installed.packages()[,\"Package\"]\n}\n\nprint(paste0(\"(Pre-install) Is the package visualize installed? \", check_pkg_installed(\"visualize\")))\n\ninstall.packages(\"visualize\")\n\nprint(paste0(\"(Post-install) Is the package visualize installed? \", check_pkg_installed(\"visualize\")))","id":1}];
+globalThis.qwebrCellDetails = [{"options":{"comment":"","results":"markup","message":"true","label":"unnamed-chunk-1","warning":"true","output":"true","out-width":"700px","classes":"","out-height":"","context":"output","fig-cap":"","fig-width":7,"dpi":72,"fig-height":5},"id":1,"code":"\ncheck_pkg_installed <- function(x) {\n    x %in% installed.packages()[,\"Package\"]\n}\n\nprint(paste0(\"(Pre-install) Is the package visualize installed? \", check_pkg_installed(\"visualize\")))\n\ninstall.packages(\"visualize\")\n\nprint(paste0(\"(Post-install) Is the package visualize installed? \", check_pkg_installed(\"visualize\")))"}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-status-header-no-title.html b/tests/qwebr-test-status-header-no-title.html
index e8ea672e..2356d77d 100644
--- a/tests/qwebr-test-status-header-no-title.html
+++ b/tests/qwebr-test-status-header-no-title.html
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"code":"print(\"Hello hidden title world!\")","options":{"classes":"","output":"true","context":"interactive","warning":"true","results":"markup","comment":"","message":"true","fig-cap":"","label":"unnamed-chunk-1","dpi":72,"out-width":"700px","fig-height":5,"fig-width":7,"out-height":""}}];
+globalThis.qwebrCellDetails = [{"code":"print(\"Hello hidden title world!\")","id":1,"options":{"out-height":"","message":"true","label":"unnamed-chunk-1","context":"interactive","results":"markup","fig-height":5,"dpi":72,"classes":"","fig-cap":"","warning":"true","comment":"","output":"true","fig-width":7,"out-width":"700px"}}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-status-header-suppressed-html copy.html b/tests/qwebr-test-status-header-suppressed-html copy.html
index 59520bfa..7900126c 100644
--- a/tests/qwebr-test-status-header-suppressed-html copy.html	
+++ b/tests/qwebr-test-status-header-suppressed-html copy.html	
@@ -78,6 +78,11 @@
   width: 100%;
   display: flex;
   justify-content: space-between;
+  box-sizing: border-box;
+}
+
+.qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+  display: flex;
 }
 
 .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -227,7 +232,7 @@
 };
 
 // Store cell data
-globalThis.qwebrCellDetails = [{"id":1,"options":{"context":"interactive","fig-width":7,"fig-height":5,"classes":"","output":"true","results":"markup","label":"unnamed-chunk-1","message":"true","fig-cap":"","warning":"true","comment":"","dpi":72,"out-width":"700px","out-height":""},"code":"print(\"Hello hidden title world!\")"}];
+globalThis.qwebrCellDetails = [{"code":"print(\"Hello hidden title world!\")","options":{"context":"interactive","warning":"true","fig-height":5,"dpi":72,"comment":"","out-width":"700px","message":"true","fig-width":7,"label":"unnamed-chunk-1","results":"markup","out-height":"","fig-cap":"","classes":"","output":"true"},"id":1}];
 
 </script>
 <script type="module">
@@ -579,7 +584,7 @@
 
 // Function to load a single package
 async function qwebrLoadRPackage(packageName) {
-  await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+  await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
 }
 
 // Generic function to process R packages
diff --git a/tests/qwebr-test-status-header-suppressed-revealjs.html b/tests/qwebr-test-status-header-suppressed-revealjs.html
index 9eec2437..9b56feff 100644
--- a/tests/qwebr-test-status-header-suppressed-revealjs.html
+++ b/tests/qwebr-test-status-header-suppressed-revealjs.html
@@ -331,6 +331,11 @@
     width: 100%;
     display: flex;
     justify-content: space-between;
+    box-sizing: border-box;
+  }
+
+  .qwebr-editor-toolbar-left-buttons, .qwebr-editor-toolbar-right-buttons {
+    display: flex;
   }
 
   .qwebr-non-interactive-loading-container.qwebr-cell-needs-evaluation, .qwebr-non-interactive-loading-container.qwebr-cell-evaluated {
@@ -480,7 +485,7 @@
   };
 
   // Store cell data
-  globalThis.qwebrCellDetails = [{"id":1,"options":{"context":"interactive","fig-cap":"","warning":"true","label":"unnamed-chunk-1","out-height":"","comment":"","results":"markup","output":"true","message":"true","fig-width":7,"dpi":72,"fig-height":5,"classes":"","out-width":"700px"},"code":"print(\"Hello hidden title world!\")"}];
+  globalThis.qwebrCellDetails = [{"id":1,"code":"print(\"Hello hidden title world!\")","options":{"comment":"","message":"true","classes":"","label":"unnamed-chunk-1","dpi":72,"context":"interactive","fig-cap":"","output":"true","warning":"true","results":"markup","out-width":"700px","out-height":"","fig-width":7,"fig-height":5}}];
 
   </script>
   <script type="module">
@@ -832,7 +837,7 @@
 
   // Function to load a single package
   async function qwebrLoadRPackage(packageName) {
-    await mainWebR.evalRVoid(`if(requireNamespace('${packageName}', quietly = TRUE)) { library(${packageName}); }`);
+    await mainWebR.evalRVoid(`require('${packageName}', quietly = TRUE)`);
   }
 
   // Generic function to process R packages