Two pushes Are too much when you have to make lightning fast switches in live play imo.
The G70 is a single always active button push...you just forget

Fastest and easiest transpose made..
I'll make this simpler:..........on the Yamahas +/- transpose is a
ONE BUTTON PUSH up or down key>>>>>
On Roland arrangers eg: G70 etc, If I remember correctly?..
as it was something I hated

especially as a singer/player...it's a
TWO PUSH PROCESS>>>>>>
first push opens the
sub menu, ...
second push you could only go +6 up or -6 steps down, not -12/+12 respectfully if needed..

when your playing & singing in
real time style play this is
UNACCEPTABLE to make lightning fast changes for modulations during a song etc,.. btw is it the same on the BK units also? I forgot.