If it's possible, use a "smooth wah". Then you have to emulate "a knee" of a traditional wah pedal: re-assign MIDI CC values (min and max) of the pedal you are using, so they are close to themselves (for example min: 25, max: 75 or so - depending of how strong effect you want). You can find detailed instructions of how to re-assign CC min and max values in the manual, page 78, 79.
The final step is to maybe fine tune with the wet/dry mixer...
Best regards, Marko
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