Accessibility issue

[Levvy]

Greetings. I have a tremor that seems to be getting worse and sometimes I have difficulty scrolling on my Samsung Galaxy Note 8. I saw under Accessibility > Interaction and dexterity > Universal switch > switches > Camera and I'd like to use the head movement feature to scroll and maybe even adjust volume (not as important).
I added these switches 'Turn head right = scroll down or right' , 'Turn head left = scroll up or left' then when turning on it said to add a switch and assign 'select', which I did .
After allowing the permissions it goes to a screen that says 'Use your switch to tap "OK" within 2 minutes. I'm not sure what 'use your switch' means....if I tap ok with my finger it goes to a menu that isn't useful. I'm guessing I'm going wrong at this step but I don't see anything resembling a switch that I can use to tap the ok.
Has anyone had experience with setting up this feature?

Any and all help is appreciated!

 

[puppykickr]

Although I do not have this feature on my devices, and am totally unfamiliar with it-
It seems probable that you answered your own question within your question-

"I added these switches 'Turn head right = scroll down or right' , 'Turn head left = scroll up or left' then when turning on it said to add a switch and assign 'select', which I did ."

Just a hunch, but I would try using each one of these and see what happens.