Toggle suppression in assembly design table

Hey guys,

Im super new to DTs and I've done alot of research.  I am trying to make a design table for some structural steel with additional formed plates welded and end plates welded to the end of my w beam

i need to know if there is a way to suppress parts on an assembly and exclude them from the bom on an assembly design table.

Some support structures need a plate welded to only one end and others need two plates (one each end)

thats the first step

The other is sometimes the formed channel (running the length of the w beam) is flat and sometimes it is a formed piece.  I need to know how to toggle between these states.

any suggestions would help ALOT!

Thanks guys again.

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