I've been pouring over all the options in the admin panel and Im having trouble figuring out how to do something that seems rather simple.

I have a pool of 12 products and I want a person to be able to select and purchase multiples of any 2 or any 4 among this pool for a special price.

For instance - each of the 12 individual products is priced at $29

I want to sell any 2 for a special price of $49 or any 4 for a special price of $79.

Is this possible and how do I set it up?

Thank You.