Hi, I have purchased your theme “Legenda” for a client who would like to sell clothes and jewelries. I would like to add additional fields for a single product i.e. dress. The dress will have a fixed cost and additionally the customer can also select whether they also want to select “Standard Stitching” or “Custom Stitching”. Both these fields will have different costs attributed to them. If the customer selects any of them, the total cost changes or remain same. Please help.