Essentially until now I've been using the 1.6 direwolf20 pack and to change the sort key you pressed the '...' in the inventory, clicked on 'sort key: r' and pressed something else. Now, in the 1.7 direwolf20 pack that option doesn't appear, nor is it in the key mapping, and its really irritating having everything in your inventory move around when I search something containing 'r' in NEI. Any help appreciated!