I believe in poser the only way your going to do it is to split the object into groups using the group editor to the different areas you want different settings, and then click "spawn props" to get seperate objects for each group. then you can manually apply a setting to each group without it effecting the others.

just remember that "spawn props" creates copies of the groups, the original "whole" object is left there. either hide it, or delete it ;)

TemplarGFX
3D Hobbyist since 1996
I use poser native units

167 Car Materials for Poser