I can't believe I'm the first to request this… but one thing that I find very strange is that when the 'Transpose - Semitone' function is enabled, it doesn't display on the unit screen where you are (for example +3 semitones or -4 semitones)?!
Transposing this keyboard is a simple case of pushing and holding the 'SHIFT' button whilst pressing the 'OCTAVE - Semitone' buttons, but where the keys are shifted to isn't actually displayed, so you have absolutely no idea which key you're playing in. Surely this function should display on the screen when activated, as it is very handy to know which key you're playing, and that you know for sure that the unit has been reset when not required? Sort it out NI….