PrestaShop 1.3.1.1 or 1.4.10 Simply modification of combinatiosn with discount

Hello I need a simply modification of prestashop cart product or combinations. What i need. I have product with combinations color: red green, white black ... and if i add to cart 1 000 quantites of product white a have a discount 0,01 price, and if i add the same product with next 1 000 quantites with color green a need a discount 0,02 for all because i have 1 000 with white color + 1 000 with green = 2 000 and discount 0,02. Next step is 3 500 with discount 0,04. Now i have discount for one product with one color and i need discount for qunatities product independently of color. In the attachment is a screenshot with step of discounts. Version of presta 1.3.1.1 or 1.4.10