Is this discount possible ?

hello,

Interested by your plugin but I didn’t find on the demo if it is possible to do this:

– Customer add 3 products to cart
product 1=$10, product 2=$20, product 3=$20,
The cheapest of the 3 products (product 1) is free.

– Customer add 3 products to cart
product 1=$20, product 2=$20, product 3=$20,
Any of the 3 products is free because they have the same price.

Please can you confirm how to do this on the demo website ?

Thank you.