Quality of Life Change for Unsealed Spell Book.

I normally play with flash on D. When i was playing Darius with unsealed spell book, i had flash on d and ghost on f. However, i had to trade my flash for tp for a teamfight. After I backed, my tp came back off cooldown and I needed it to tp to a turret so i changed my ghost for flash. Now I had flash on the f key instead of my usual f key so when i tried to flash, i just didn't do anything and this was frustrating because i kept pressing the wrong key. Unsealed spell book should allows you to swap the keys the summoners are on which would be greatly helpful without really buffing or nerfing it. It would just be a quality change for situations like mine.