Example for new "collapsible" group option.

examples/groups_demo.py

@@ -0,0 +1,41 @@
+'''
+A simple Gooey example. One required field, one optional.
+'''
+
+from gooey import Gooey, GooeyParser
+
+
+@Gooey()
+def main():
+    parser = GooeyParser(description='Log into webservice.')
+    userIDGroup = parser.add_argument_group("UserID")
+
+    userIDGroup.add_argument(
+        '--login',
+        metavar='Username',
+        type=str,
+        help='Enter you email address.')
+
+    userIDGroup.add_argument(
+        '--pwd',
+        metavar='Password',
+        type=str,
+        help='Enter your password',
+        widget="PasswordField")
+
+    advSettingsGroup = parser.add_argument_group(
+        "Advanced Settings",
+        gooey_options={"collapsible": True})
+
+    advSettingsGroup.add_argument(
+        "--serviceUrl",
+        metavar="Web service URL",
+        type=str,
+        help="Enter the url of the webservice you want to connect to.")
+
+    args = parser.parse_args()
+    print('Connected!')
+
+
+if __name__ == '__main__':
+    main()