I have an interesting problem:
Our store has 3 categories:
white wine: 2 products
red wine: 2 products
champagne: 4 products

We would like to give a discount to buyers that purchase any 2 or any 3 products as long as the products do not belong to the same category.

For instance:

1 White wine + 1 Champagne= $4 off
2 white wines = no discount

1 white wine+ 1 red wine + 1 champagne= $10 off
1 white wine + 2 champagne= no discount

I installed the "Quantity discount" add on, but it is setup to either give a discount by category

2 white wines = $4 off
1 white wine + 1 red wine= no discount

We do notr want that. In fact we want the exact opposite. Is this something that can be done?

What other way could there be to set up these discounts?