uvreactive

I have a inventory where each item has a UPC. I frequently sell kits of multiple items at once, and would like to scan one UPC, and have the corresponding multiple kit items be removed from inventory and charged out on the bill/invoice. example would be Kit 1 contains 6x item 1 2x item 2 1x item 3 1x item 4 i want it to charge out each of those items when I scan a ###### barcode