Replace files in composition without affecting other compositions.
Can't seem to figure this one out. I have 8 animations, each using the same element duplicated and animated ~25 times in each composition. I made the first composition and animated all of the elements. Rather than manually doing that again for each composition, how can I replace the footage inside a duplicated composition without affecting the other compositions? Is this even possible?
Here is a screenshot. Note that I want to replace "Artwork 1" with a different file when I duplicate the composition.

