You can control the CS-80 V Volume and Wah from an external expression pedal.
The external control is activable from the dedicated buttons:

Wah is a destination that you can assign to any modulation source, direcly from the Advanced panel.

This fader is a global control for the release of the CS-80 V:

If you press the following switch, the global release will only be triggered by an external sustain pedal:

Note that if the button is in off position, the sustain is hold
Raise this fader to have a Portamento / Glissando effect:

Use the Portamento on/off to switch between Portamento and Glissando:

You can activate the global Portamento / Glissando from a external sustain pedal, using this switch:
