suggestions v1:
numbered hotkey zones for quick navigation (ctrl 1 ctrl 2 etc)
mouse hover tooltip notes for design (can add text notes to individual components)
color zones with notes (drag and drop color zones with text notes)
right/left click to drag map while line dragging (drag line while moving mouse with mouse)
highlight lines when hovering over node (see what this node connects to/connections panel)
ctrl click to select node to view highlighted lines(keep a nodes highlighted lines selected while navigating map )
[->] Tile to hide sidebar UI ( hide sidebar button)