Scan a case barcode for despatch.

I sell lots of items which come in case packs (6, 12, 18 units per case). Because I also sell the items in singles I have to have a single product which means the only way to despatch cases at the moment is to enter the quantity in the case before scanning the case or single product barcode.

It would be so much better if a case barcode can be entered, and that Store Feeder knows the case barcode is for the 6, 12 or 18 units mentioned above.

Does anyone else have a solution to despatching cases by scanning them? It slows down despatch having to enter a number before a case is scanned for despatch.