Kindly my question is, in performance mode I want split 3 sounds in left-hand side Strings, Pads layer and right-hand side just Piano, so when I play I press sustain pedal but I want sustain apply just in piano side, I dont want sustain apply in strings,pads layer sound, is this possible?
Select a Part you want to turn the sustain pedal off for (your Strings part to start with). Then press EDIT. Tap Mod/Control, then Receive SW. Turn off the Sustain button (so it turns gray and says "OFF". At this point the sustain pedal will not sustain the Strings part.
Repeat the process for your Pad part. Leave Sustain on for the Piano part. Store your performance. Done.