Saving Individual Aux Mixes to a Scene or Library

Is there any way to save individual aux mixes to a scene or library? I would like to be able to save each band member’s in ear mix seperately so that I can recall it the next time they play. Since we mix and match band members, I need a way to store each mix individually.

It would also be nice to be able to save and recall individual aux mixes on a PL series controller.