PSR-SX600 voice changer keyboard

[franscial81]

Hello everyone, I have a Yamaha PSR-SX600 keyboard and I created a plailyst with music finder view, software that allows me to edit styles, tempo, intro, main variation, but not the voices. I would like to know how to assign voices from me choices preparing the plailyst on the computer. I currently edit the entries when I load the file on the keyboard but it is impractical. Thanks, Gennaro