https://www.posetteforever.com/viewtopic.php?f=68&t=2910&p=37107#p37107
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Whazizname
Wednesday, 26 September 2007, 04:05 AM

Re: [Tutorial] Making the most of a freebie auto in Poser
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Now time for some material shaders:

Switch to the Material Room, and make adjustments to the material zones to suit your tastes. 
This model's tires & wheels share a material zone (The material zone is named "Mag"){Image 9}; so I will assign a new material to the tires.

Activate the Grouping Tool, and select the tire's group; then click Assign Material. 
Type a new material name in the dialog that appears (I chose "Tires"), and you'll have a new material zone to work with. {Image 10}

This model has a separate group for the rear tires; so I selected that group ("Tire01"), an again clicked Assign Material; but this time I typed the same material that I chose for the front tires ("Tires" - be careful not to change the spelling or you will have a new material zone for the rear tires).