Hi Cruz, If I understand you correctly you need the wall rail bracket not to show as plate and bar in the BOM. I have attached information on how a change the TypeName of a user section and have it reflect in the BOM, mind you it is not your exact situation so use it as a guide or reference.Please see attached PDF.I hope this helps,Best Regards
Attachment: REBAR-HOW TO ADD TO EXT_AISC_Roundbar_0.pdf