having problems with details selection

i have a packing slip report with 2 detail sections. can i select which details section to display/print as the line item based on whether the line item is a stock item (orderitem.type) =1 or a miscellaneous item (orderitem.type) = 3 ?? i don't want to use the suppress method, it needs to be one section or the other. thanksWhat's wrong with conditionally suppressing each detail sub-section as required? Would seem to be exactly what you want.