Can a group of keyframes in dope sheet be scaled (stretched/compressed) proportionally based on an anchor point in the timeline? I mean with falloff effect like you would get from proportional editing a group of vertices.
Yes, but it’s pretty puzzling. It seems to be just Scaling your selected keyframes, but apparently always from frame 0. I could be wrong, but I couldn’t get a different behavior out of it by selecting different keyframes, nor placing my cursor elswhere, nor moving the playhead before I tried moving keyframes.
I don’t see the difference between this and Scaling, apart from this: Scaling uses the playhead as the reference point. Seems more useful to me.
Using 2.79, btw.