Keyboard tracking is on the second page of the filter section. Otherwise in the Mod Matrix you're looking for Note Number as a source. That said, I just tried this on my Tempest, and the filter didn't track chromatically very well at all. Performed a calibration, and it still wasn't tracking well, so... I don't know. I haven't used the Tempest in a while, but I thought the filter tracked better than what I'm hearing here. Maybe it never did. I can't recall.
Cheers!