Is there a Tutorial on keys-Lock and various KeySwitch settings?

I’ve been getting to know the Key-Lock options.

Some seem obvious and work ok, but others leave me wondering what’s going on.

I can see the Grey KeySwitches and understand that they are the Key bound to the Chords of a given section. I can also move where those Grey Keys can be on my keyboard, via the Preferences> Playback area.

However, I’m not sure about the light green Active Keys. I think these are the keys that are linked to the bound keys, but how does the numbering work? Can I move these?

I take it that the blue keys are normal.

When I play the C key on my Keyboard, is show the E key (3) in Scaler?

Many Thanks

Thry the tutorial on KEYS LOCK Options in Scaler 2.6