There's a repeater function for shape layers. I created a masked shape. When I add repeater, it only repeats the shape, not the mask. Is there a repeater function for that composition?
The current and repetitive way off doing it is to duplicate the layers over and over, offsetting and playing with each one to get multiple similar but different compositions.
Pre-compose, apply effects like Motion Tile. Or indeed use Echospace or similar expression-driven setups.