Where to Find Pulse Width Control for Square Wave in Massive X?

Hi everyone,

I'm new to Massive X and trying to learn sound design. I found the square wave form but I'm struggling to locate the pulse width control for shaping the pulse. I see the filter option but can't figure out how to adjust the pulse width on my square wave. Can anyone guide me on where to find this in Massive X? I am trying to finish "On Your Own 02 Shaped Pulse".

Thanks!