The first one (General shipping) offers free shipping for orders above 50$ or 4$ shipping fee for less than 50$. The second is a custom profile for "large items" that includes 4 paid shipping rates to different locations and 2 rates for two pickup locations for free. Somehow, when a customer adds a product form the General Shipping and from the Large Items, the only shipping method he's receiving is "Free". To solve my problem, I need Shopify to display the rates of the "Large items" whenever it's combined with an item from the "General Shipping" item. How can I make that possible?