So I have designed a skid that requires sections of pipe to be bolted together.  There are several sub assemblies that make up the top level assembly.  To speed things up, the skid is an subassembly, and I have a bolt pattern that is also a subassembly.  When I create a BOM I the skid to be called out as its assembly number, yet I want the bolt pattern to call out individual part numbers.  Is there a way to do that?