[ENHANCEMENT] Resize mask/plane from edge
It would be very helpful if we could resize masks and planes from the edge instead of always having to scale from the center. Yes, we can scale from the opposite corner using key combinations, but we can't scale from the opposite edge. I needed to make a solid stripe grow across the screen diagonally. I ended up making an extra long plane and moving it via the axis arrows on the plane. It did the job, but I think it would have been easier to keyframe the length of the plane.
I made this in Acrobat, but it's an example of what I would like to do: