Shift movie horizontally for side by side I have two videos where the action appears on the left side of the frame.  Using iMovie version 10.0.9, I use the side-by-side overlay.  The bottom (right) video is overlapped by the top video so the action is not seen.  How can I shift the bottom video to the right so that the action appears on the right side of the side-by-side?  Can I edit the right side video 1st so the action has been shifted to the right side of the frame?
I'm looking for an answer that uses just iMovie or QuickTime editing feature but until there is an alternative provided, I will post this answer using the free VideoPad app (https://itunes.apple.com/us/app/videopad-video-editor-free/id846931335).

VideoPad has a Position Video Effect that allows me to slide the video to the right (the left area is filled in black).  Saving this I can now position it side by side and have the action appear on the right half back in iMovie.

Support for positioning video within the frame is what I need in iMovie