Just a few suggestions after briefly testing editing collision/mesh…
Moving Points:
I kept trying to click and drag a point to move them, find it very “clunky” to have to select a point then move using gizmo.
really just drop the gizmo, if you need to constrain to an axis, just use a key modifier like shift while moving.
Adding Points:
Again, very “clunky” to select an edge then press insert. (also would help if the inserted point was selected if you keep this workflow)
It would be easier to use a key modifier when you click an edge to add a point at that position on the edge.
example -
ctrl + LMB = Insert point
ctrl + RMB = Delete point
Other Suggestions:
Sync the viewports - found it annoying having to zoom and pan when switching modes.