I want to buy a keyboard with a special kind of pitch-bend wheel. Casio's CT-S300 (+ other models) lets a player adjust the range (number of semitones at maximum bend) but I think it's the same for up-bending and down-bending. Do some keyboards allow defining DIFFERENT AMOUNTS for the maximum up-bend and down-bend, with independent adjustments? (e.g. so maximum semitone changes are 1-downward but 4-upward) If yes, this would be very useful for musical creativity.