After hours of Googling, I can't seem to find what I am looking for. I feel like this should exist already, but I don't know.
Is there a way to create a custom effect (or anything) which allows you insert keyframes on a track at the playhead? I have tried using custom effects but I need something more modular.
I am working on a project in which I am adding slides to a series of recorded lectures and I am switching between full and half screen slides. I want the full-screen slides to animate to half the screen after an indeterminate amount of time. I know I can copy keyframes but that feels messy.
If that's the only solution then I guess that's what I'll have to do, but I feel there needs to be a cleaner way.
Afterthought: Is it possible to apply some sort of class effect which, when changed, would update all the instances where it has been applied?