Hi, i buy my first Casio keyboard, a PX-560.   I'm used to playing Yamaha keyboards (like the PSR S700) and the behavior of strings on the pedal is different from Casio. In Yamaha, when you play a note with strings with the pedal pressed, the sound is only prolonged for a while and then then it disappears little by littlet. In Casio the strings remain forever until I release the pedal. Is it possible to have this kind of behavior through some configuration? Note: I am not referrin