COMBINE HS CODES WHEN SENDING ORDER TO COURIER SO ITS ONLY 3EUR PER CODE NOT PER LINE

CURRENTLY MINTSOFT SENDS EACH PRODUCT AS A SEPERATE LINE TO A COURIER, IN MY CASE, SPRING GLOBAL.

BUT INTO THE EU THAT NOW MEANS WE GET CHARGED 3EUR PER LINE. WHEREAS IF PRODUCTS WERE GROUPED BY HS CODE. IT WOULD ONLY BE 3EUR PER HS CODE