There is no option in the settings to change the narrator hotkey

In the recent versions of minecraft there in no option to change the toggle narrator hotkey. It is set to control+b. I think this is a problem because control key is used for sprinting and the b key is really close to the spacebar and easy to hit with your thumb (in 1.8  I used it as my hotbar hotkey), so its very easy for me to accidentally toggle on the narrator, which is very annoying. I think that it would be very easy to add an option to rebind it to somethink like control+p, so you don't turn it on accidentally.