web2step

Each combination product should have uniq price. For this exhibition value of the product price = 0, and the combination product put equal value "to increase" <<COMBINATION_PRICE>>. Вut there is a problem: In "category list page" order by cost is not valid, because this page order by product cost(for combinations product cost =0) instead order by product combinations cost & product cost (when product haven't combinations). Help me please!