This might be one hell of a necro post, but just in case someone wants to move Sort/Trash and sees hex like it's a foreign language, this can totally be achieved using FF4kster!
1) Go to the Opening Event
2)Remove both Sort and Trash using the "Remove item from Inventory" command
3)Now, use the "Add Item to Inventory" event command to add a potion and the -Sort- item, in that order
4) Remove the Potion using the Remove Item from Inventory command
Now the -Sort- item will be in the upper right-hand corner of the item screen! If you don't want to lose the Trashcan, add that instead of a potion and skip step 4.
We have EVEN MORE themes now, but some old ones are gone...