Earlier quoted context omitted.
If one freezes then use the other 3. If they all freeze let the autopilot do it's job.
I find it sort of weird to not have buttons in there: with all the vibrations you would think it's rather difficult to touch the exact control that you want. I guess they considered that...
https://spaceflightnow.com/2020/04/03/photos-astronauts-trai...