This operation allows you to shuffle frames around to do out-of-order editing. It does not use any cache memory.
This is intended to be an interactive operation, most easily manipulated in the timeline. Drag a frame handle to its new position to move it, and SHIFT-drag a handle to another frame to swap it with that frame.
A string specifying how the frames are to be moved about. The format is as follows:
Move frame A to frame B, moving all frames in between by 1.
Swap frames A and B.