I need to have 3 different BOMs for an assembly.  One will contain the bars of the assembly frame, the second will have brackets and the third will take care of the rest.  I can't just split the table because I need different columns for the first table than the second and third.  I have tried to use configs and exclude parts from the BOM and it worked for the first config but the second two change with each other.  See  https://forum.solidworks.com/message/271157#271157 for more on that.  Is there a way to just pick the parts for the BOM that I am missing?

Thanks