Thank you both for the replies,
I am not sure what you mean about it being interactive, though, that is not what I’m after. The script I am after is just to save me having to manually change the input and output time for each and every composition.
Say you have 100 layers of the same pre-composition, and you just want a script that randomly chooses a frame within each one to play from, so that they all start from a different point in time within themselves. Surely there must be a way to do that?
Sorry If it wasn’t clear!