I have two clips running at the same time. One is a computer and the other is a clip that I've made to look like its running on the computer screen. I've used four corner motion tracker to keep the two in sync as the computer clip zooms in.
At a certain point i'd like to freeze the computer clip while the clip on its screen plays out. I can crop the computer clip up to the point I want it frozen but I'm unsure of how to extend/repeat that last frame so it stays visible until the other clip finishes. At the moment it just dissapears when it hits the crop.