thank you for your suggestion, even if I think this will not solve my problem.
My idea was to use this trick with sheetmetal item to identify fasteners: if you have a complex item, with hundreds of different fastener, a balloon for eachfastener could be very usefull for the manufacturer, but only if you have the same number for the same fastener (ex. nr."2" for each "s-m3-0" fastener, nr. "3" for each "fh-m4-8" fastener.......and so on).
Is this what you mean. If it is, you just go to table/b.o.m balloon/split click on the balloon and then on the component related to the balloon, is going to ask you how many times you want to split it. If this isn't what you mean sorry i couldn't help.