I didn't say anything about saving a material collection. I said select a single skin material - "a" material - and save it. Doesn't matter which, because the different skin zones have the same nodes, just different texture files.

Pick, for example, the face. Save that material. Now load that material into Template Skin.
Go from there.

The saved material collection is no help because you can't load a single material in that collection into the control prop. The names don't match, and there's no way to load just one.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)