Is there documentation on what settings affect on screen hel

I thought that I had 'turned' off all 'help' settings which 'bothered' me (and retained those I really wanted) but I still get 'help' when for example I run my mouse cursor/pointer over things such as the knobs on the Garmin GNS 530 (displaying how to operate the knob) which annoys me as it hides where the mouse pointer is.

To save a lot of trial and error, is there a document which shows what each setting does and/or a useful Youtube tutorial (I could only find them on tweaking setting for best performance).

Thanks