If you are doing a lot of work in the material room this freebie may be useful as you can quickly check the values coming out of nodes.  That way you get a numeric reading of the output instead of just a color.

Value Viewer for Poser Super Fly

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13