If one of you use PowerDirector on android, you might have noticed that this feature is very limited: you only set start and end of it. That's not a big problem for me, but my real issue is that when I want to zoom and then zoom out again I can't make the end position of the first part exactly the same as the starting position of the second one.

Any workarounds on how to use this feature in my situation (zoom in and out in the same video) ?

Simple Pan & Zoom Demo