Waveform + Mobius Filter = Auto-Wah

Hey there,
I’m trying to build a Auto-Wah with a Strymon Mobius and my MC8.
Thought about doing so with changing the cc-value of the Frequency Midpoint via the Waveform Generator. But triggering the waveform generator only activates it in one direction.

Is there a way to continously have the cc-value rise and fall in sine-form as long as the switch/message is activated (e.g. latching or momentary)?

Thanks in advance!