I saw a "how to" in a document on how to substitute a .dwg into the .cat file for a piping component. In this case it is a reducing coupling. I put a SUBDIRECTORY/DWGNAME information in the .cat file and it did not work. So I am trying to troubleshoot what the issue is.

Can someone point me to where this file might be or, even better, might suggest something to try to fix it?

SaturnV