Is there a way with this contrib to apply a discount individually to multiple items at the same time? For example, I would like to create a coupon that applies to a group of items. However, that coupon would discount, say $5, from each individual item from that group when placed in the shopping cart not the total price. So if items A,B, and C were in the group but item D was not, and when the customer orders items A,B,C, and D, the price of A is reduced by $5 as well as B and C but item D is at the regular price. Thanks.