I don't have time to show you, but I actually first built the demonstration using a zebra texture instead of a nose mask.

If I had shown you metallic zebra stripes mixed with ordinary skin, we'd not be having this discussion about the grouping tool.

You may wonder though why I didn't acknowledge or mention the grouping tool. Well, you guys already said you could use it, and I don't have anything to add to that. Then some said why/when you couldn't use it, and I have nothing to add to that either, other than what to do when you can't use it, which is what I posted.

Remember, I'm the guy who is abrupt, which some read as rude and dismissive. Actually the problem is that it is the weekend and if I keep talking to you people my wife will divorce me. I am only home 2 days a week this entire month.

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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)