I'd like to be able to select a bunch of empty frames, and delete them which would make frames from the end move forward to fill the space. I'd also ike to insert a variable number of frames, thus moving keyframes back... Similiar to how Flash frames work...
I think Moho selects the keys and not the frames. Maybe an option to select all of the keys after the cursor could solve your problem. Then you can move these on the timeline wherever you want.