I have a pre-composition with some fairly complex particle systems that I would like to duplicate multiple times in a final comp.
The trick is that I want to apply a unique "position XY" value to the various effects inside each precomp instance. I already have the values chained together with the pick-whip inside the pre-comp, so all the "position XY" values can be moved as a unit.
Is it possible to feed unique effect values down into the stack of pre-comps using expressions or some other trick?