Korg Pa4X User Manual page 831

Programming the ribbon controller
Assigning functions to the ribbon controller
The function controlled by the ribbon depends on the selected Sounds.
Assigning Sound parameters to the ribbon controller can be done in
Edit.
Assigning the ribbon controller to the Sounds
You can activate/deactivate the ribbon on each Keyboard Sound.
1 Go to the Keyboard/Ensemble > Ribbon/Aftertouch
2 Use the Ribbon
3 Write the changes to a Keyboard Set.
checkbox to turn the ribbon on/off on each Sound.
Hand controllers |817
Sound
page.