Yep, but for characters like Victoria 3 and the likes, where there are tons of materials with the same settings (body, arms, hip, legs, etc, all with the same material) it can be a pain to modify one tree and then have to copy that to 7 different materials, only to modify it later and have to do it again.

Python can be very useful for this, I just made a script to copy one victoria 3 material tree to all the other correct materials with a single click, be it head, body.

I can share it with you if you want.