I have a product that comes in 7 variants. They are all the same price. I want to set it up so customers can buy any 3 of the variants and get quantity pricing. One is 9.95, 3 would be 9.50 each. I know this is possible, but I can't figure out how to set it up. The closest I get is buying 3 of one variant and getting the discount.
What do I need to do to make the discount apply to any 3 of the variants?