Point items that may be of small amounts that people would group and buy in bulk or together at the same time are a perfect scenario for the shopping cart, but are not allowed. Right now products with points purchase options are not allowed in the cart functionality. Please add points to allowed items and simply enforce like you do any other currency where all items in cart must be points purchases or something vs not allowing points purchases in the cart at all. Better yet allow split payment so it doesn't matter. Add items to your cart for $100 use 50 points and then pay the rest of the $50 in cash. (yes this would require a monetary point value setting but easy enough to do I think)