I would really enjoy a feature where you can add multiple versions of a card to your wishlist without adding additional rows of that card.

FOR EXAMPLE:
I need ONE Dark Ritual, but I only want the Masterpiece or FTV version.

Instead of adding a dark ritual to my wishlist without specifying set, or adding two Dark Rituals to my wishlist each with a different set (when you receive one in a trade the other will still be on your wishlist although you only needed one)