As you can't normally get a button to output PB from the front panel.You need to get Mark's editor (or mine) and then you can make it work.$button 1 .showvalue on .minmax 0 1 .default 0 .mode toggle .tx $E0 val $40This will outputE0 01 40 ;pitchbend channel 1second pressE0 00 40 ; pitchbend offRoyce