Basic drawing tools in NR editor

[knolleary]

also discussed:

Expanding on the Comment node--Creating a node that can be resized?

Use-case: Building a Section node that a flow user can re-size and always is the "bottom-most" node layer of the Node-RED canvas. Users would use this node for demarcating a specific area of interest for the original Flow designer and other succeeding flow designers. This is similar to the comment node It doesn't appear that node resizing is something immediately supported, nor within the vanilla Style Guide. Has anyone else considered this? Any best practices for accomplishing this use-case? …

and

Being able to draw optical frames in editor

It would be great to be able to have some kind of a draw function to create rectangles in editor to group nodes optical together. I have a picture attached of how it could look like. Similar to the selection frame. [proposal] It could also be kind of attached to a comment node to provide a UI reference point where it belongs to (for example to delete it). What do you think about this idea?