Flat & Scruggs

It would be nice, that arrows make note higher or lower by the meanings of arrow. So If I write in A-dur, there are three sharps. When I write "g", then would be writen "gis". Then if I press move up, I would get "a", when I press down, I would get natural "g", with next pressing down I get "fis" (because it is preseted in begining of staff).

So globaly pessing up means adding #, pressing down adds b.

But now is it that if I press up on "g" I get "as"

JV