Kohler Symbols

[marcdevon]

I have a Kohler sink from their CD. When I import it into Chief through the Symbol Wizard the sink bottom sits on top of the base cabinet counter top. How do I get the sink lowered down (Z coordinate) so it sits in the cabinet's counter top not on it? I do not know why I am unable to do this without have to make a custom couter top with the hole (this is a lot of trouble). I went through the sample plans included with Chief and with the Cape Cod, they were able to accoplish this. The sink was properly inserted into a standard counter top without the use of custom counter tops. Why can't I accomplish the same?

Thanks

Marcus