Hi Floodie,
For the sake of completeness, here is the following information: In order to play all three Right parts at the same time, i.e. to layer them, the Right split point must be set exactly one semitone higher than the Left split point.
By the way, Style and Left split points are usually set to the same note, but you could set the Left split point to a higher note to create a separate keyboard section for the Left Part (between the Chord Detection section and the Right section).
The default Split Point setting is as follows:
Style: F#2
Left: F#2
Right3: G2
Caution: If you were to set the R3 split point "one semitone too high", i.e. to G#2 in this example, the result would be that when the R3 part was switched on, the R1 and R2 parts would only be heard on one note (G2), i.e. R3 quasi "mutes" R1 and R2.
Also note that the split points are always automatically memorized in Registrations (Style and Left split points when "Style" is ticked, Right3 split point when "Voice" is ticked). Registrations that contain deviating split points will therefore change your current split points. The only way to avoid this is to lock the split points in "Parameter Lock". Then you can only change the split points manually directly in the split point setting display (quickly call up with "Direct Access > Auto Fill In" or "Direct Access > ACMP").
Best regards,
Chris