[feat] Editable connectors with adding points

[EGRoBBeRTiT]

The existing problem

Now the connection of various connector elements cannot be edited, moved or added in any way, which causes inconvenience.

In this regard, we have the following question: are you planning to finalize the connector, or maybe you are already in the development stage?
If not, our team may soon provide a merge request with improvements to the connector.