Thanks bagginsbill for the tutorial and for taking the time. :)

I liked all suggestions, actually. I never knew the grouping tool is actually that useful... I knew it was a good decision to choose Poser over DAZ studio. And not just because I always liked the cloth room. Obviously Poser can do a lot which I know nothing of.

However, bagginsbill solution has two advantages for me right now: I now know that the nose can be done like I thought and feel clever.The nose texture can be as detailed and big as I want and I can resize it in Poser or replace it anytime if I want wooden leg etc., and I now know another nifty trick without touching the original texture.

Also, I can give Rudolph a shiny red nose for Xmas now. lol Yay!

The grouping tool is fine if the character's nose is ready and done, but I haven't finished his face yet. Nothing wrong with having a nose prop ready.