Pricing modifiers

 Hi, we would like to create a promotion such that, if the customer buys any 6 of the items in the identified item category, he should get all 6 for $0 and any item after that should be priced at the regular price.

Let us say we have I1,I2----I100 in the category and lets say each of them priced at $100 Customer order Line1 – 2 of I1’s - $0 Line2 – 2 of I2’s - $0 Line3 – 3 of I3’s - $0 for two and the regular price for the other $100 So the order total will be $100 at the end This is not price break header. I tried using Group of Lines, with Recurring break type, but it requires LUMPSUM as the application method. I cannot use LUMPSUM in this case as this type of application looks for the dollar amount that needs to be adjusted. And i cannot