Get repeated shapes to follow position and rotation at an offset time position?

[EugeneBotha]

I created this.  I want to repeat the moving elongagted triangle shape around the rectangle almost 10 times. How can I use a repeater to create copies of this without having to just duplicate 10 times the layer and offset the layer positions on the timeline? Can I get the  repeated shapes to follow position and rotation at an offset time position? Is there an expression for this?

[Rick Gerard · Accepted solution]

You basically have two options. Dan Ebberts' Creating Motion Trails or the Echo effect. Motion trails will require 10 copies, Echo relies on time to offset a copy of the animated layer. The shape layer repeater cannot be used because it does not offset objects based on time, it offsets all copies by a single position, rotation, and scale multiplier.