Add features to my bigcommerce store

Hi, I am looking for some help with my Big Commerce store. For a particular category I would like to set a minimum order quantity for each product, however this should be able to be made up of a number of variants for that product, so for example if the MOQ is 15 the customer could order 5 x variant1, 5 x variant2 and 5 x variant3. The customer should therefore be able to add all the variants to the basket at once from the product page not have to add the first then go back to product page to add the next etc, if you can help kindly send request. (Only fast response seller please)