just a few quick notes.
When in MOD you can adjust the base of the scale and build "on top" of it.
From the default (chromatic with a base of C), you would select F# as the base and press Maj, and you should get F# Major.
When in CAD, the scale composition will get translated to changes in pitch of your tracks, so you can actually use MOD to influence the page sounds altogether.
You are right in that there is no way to do a direct jump from let’s say F# Major to G Major, and that would not be a big issue to implement, maybe using the main encoder.. is that what sort of what you meant?