One thing that’s currently lacking: Multi-waypoint deleting thing. (So that we can remove all waypoints and be able to edit in non-animate mode again)
I know that “Disconnect” option works in most parameters, but doesn’t do well enough in Vertices paramaters. Try making a bline with region and outline, go ahead animate them, then Disconnect the vertices. Yeah, sometimes waypoints don’t disappear, but here, try moving the tangents and vertices in the canvas now.
…See what I mean?
Also, we might also need to figure out a way to edit in non-animating mode even though the animate-mode vectors have changed. Basically, I mean something like Blender where Object-Mode and Edit-mode stuff can… erm… probably never mind.