Bear with me as I might have trouble explaining myself on this one:
Initially I was confused when holding S1 or S2 as the other menu softkey options where still there.
It would be beneficial (and really help speed up navigating by skipping some eyeball hunting) if the moment you pressed either S1 or S2. the first 2 x 4 area menu options momentarily disappeared (while holding the shift softkey) and was then populated will the name/colour of whatever is within the current grid chosen.
So as an example lets say the user was sitting here:
If the user then pressed S1:
And upon completing connections and releasing either S1 or S2, the regular menu items would re-appear.