The easiest way that I found while dealing with your dilema was to build product groups, I have 8 different product groups (cryo, cryo pooled, ffp, ffpcp, pc, plt, tcryo, and wb). Once you have your groups built, you can activate all your products and on page 1 of the product dictionary input your product group in the group selection spot. Then on page 3 of the same dictionary under the substitute product field input all of your activated products plus your product group. On the same page in the substitute product group field, enter your product group. This way if the floor orders a unit of packed cells, you can pull any compatible unit from the shelf and issue to the patient because everything is tied to a group not an individual product.:coffeecup