Customizing the Happy Ghast's controls (and speed)

Having already played with the Happy Ghast in the Bedrock beta, I have a suggestion regarding its handling.
I would like its controls to be customizable, given how awkward it can be, especially vertically.
That's why I would like its controls in all directions to be customizable for those who find it awkward to operate with their gaze or the way they crouch.
(This is slightly related: I would like the "-" button (*Designated by the player*), which is used to run, to be able to accelerate while mounted on the ghast, since there will be buildings farther apart, or long spaces, or simply to transport a ghast from one side of the world to the other)
Those are my suggestions. To everyone reading... thank you.