That is very cool option.
I think my situation may not work with it, becasue, my static cart has the product id of 1 twice, and set to replace, with a dropdown qty limit of 2.
and product id 2 also set to replace with a qty limit of 2.
so they can only buy 1 variation of product id 1 in addition to product id 2 both with a qty limit of 2.
If I add the name column set to update, it allows them to add the same variation of a either product multiple times.
also, my quantity discount of => 2 * .375 no longer works. It only seems to work if 2 is added at the same time. Not if it occurs in the cart twice.
If it were possible to:
1. limit it to one variation of either product
2. never allow it to be in the cart more than twice
3. insert the names (which i see i can)
4. Calculate the discount.
it lives here if you want to see it: