I am playing in a survival world, and I unlocked airbending with a scroll, but now I have a firebending scroll and want to add fire bending. When I right click on the scroll, it just brings me to the airbending menu where you can unlock new skills. I'm playing on a world with no cheats on, and I have a ton of firebending scrolls already, so I don't really want to start over with cheats on

The temporary way
The permanent way