Equipping JJu-88 with exterior loads in existing missions?

[jamesdietz]

I understand this can be done in FMB , but I'm not all sure exactly how.I see I can change aircraft ( say from Ju-87 to Ju-88 on dive bombing missions ) but I cannot figure out how to load these" new" Ju-88's with exterior bomb loads.Can someone help...and go very slowly?
BTW in the "Single" Dive bomb attack missions that came with the sim my squadron mates don't dive bomb ,but seem to release as level bombers -what is going on here?