I can see that working, although it would have to follow the normal copy rules in that it would copy whatever glyph/fore/back are there based on which modes are currently active. The only difference would be that by using ctrl it would copy from the uppermost visible layer rather than the active layer like it normally does.
Of course I had in mind that it would copy glyph/fore color/back color. I wouldn't change that, that's perfect mode.
Maybe I wasn't fully clear. If you have for example all 4 layers visible, it will copy glyph/colors you see actually on screen, regardless on which layer you are. So if you have glyph on layer 2 and 3 it will copy glyph from 3rd layer (if they are visible ofc).
I'd like to say I'd add this for sure, but it seems like a rather specific case unique to your workflow, not something that many others would use. If as described it would work for you, I could still consider adding it and later make it an option if necessary to recover the command for a more general purpose at some point.
Don't see why it is specific workflow for me. I find this really useful. Lets say you have on 2nd layer sorted glyphs you use for drawing, and you work on layer 1 (or you have specific colors on layer 2, like more shades of certain color). Normally in current version you switch to layer 2, copy glyph/color, switch to layer 1, draw. And do that several hundred times
In my recomendation, you always stay on layer 1, with ctrl right clicking glyphs/colors.
Aren't you working like that? Wouldn't that be beneficial for others also?
I wouldn't request something only I would use.