Michael 8 Anatomy Silver

iacoposk8

Hello everyone! I'm new to Daz Studio.
I Have MIchael 8 pro bundle.
I go to "Genesis 8 Male" and double click to import the person.
Then in the "Anatomy" folder I double click on "Genesis 8 Male Genitalia" and the shape changes correctly but the color is white / silver.
If I go to "Materials" > "Base materials" > "3Delight" or "Iray" I can change the color of the person but not the anatomical parts color, how can I do?
thank you.

Platnumk

Make suree you have the Genatalia selected in the Scene Pane then follow steps 1 to 7 in the following image