Difference between clips and backing medias turns ScreenFlow (SF) into a Lisp-like and Git-like environment for easily trying things out and reverting them if you don’t like the results
Test this out by speeding up or slowing down a clip, cool
Where can I find standard, known-good approaches for visual and audio effects in multimedia content production?
Nested clips
Templates seem like a really great idea, too
You can do free-hand callouts that blur and darken areas