Mike - thank you. It helps some alright. I guess the question stems from - if I had 'use at creation' checked in the classes dialog, and had selected a solid fill, then it seems these cabs would fill as they were created as long as they are in the Classes>Millwork>Main class.
I understand the red vs black objs from the OB. The cabs from the Palettes>Architect are also pios and regardless of the class atributes 'set at creation' - they install unfilled. PIOs from the OB are filled at creation.
It's really not that big of a deal, just trying to make sure I understand.
Guess Nemetschek folks either don't want to address this for me or have started a long holiday break - :-)
Thanks again