I am working in the timeline and I have a shape tween keyframe at every 200 frames running for about 8000 frames (its an abstract geometric artwork)
I want to double the frames so there are 400 frames between each keyframe. I can go in and do it manually but does anyone know if there is a faster option?
you can halve your framerate. that will have the about the same effect as doubling the frames but will effect all your timelines so may not be satisfactory.
try it and see. it's easy to undo and quick to do/undo.