Customize Existing Table
We have the full version and I have a fully custom library of fasteners. I am looking to 'add' the pem nuts to our catalog. To back up a bit, in our current offerings, I am using fields <BUW_NAME> & <BUW_SIZE>, I created a relation to combine these two fields under the parameter <DESCR>. This parameter is what we show on drawings/ BoM's.
So, I added/ created fields <BUW_NAME> & <BUW_SIZE> to a Pem Nut table and generated data under each column. What I am trying to do is get these table fields linked inside the models parameter table. The goal here is to insert a single instance (AC-M6-2) in to an assembly file, and the assy dwg (BoM's) would show:
PART # QTY. DESCRIPTION
AC-M6-2 1 PEM NUT, M6
The 'DESCRIPTION" column on the dwg table is linked to our model parameter <descr>. This is the relationship I am attempting to create by adding columns to the provided tables.
Not having much luck, so what am I missing?

