From a poster in the 2441ZTH thread. He shows an image of the nodes for the 2441ZTH and there are no humidity nodes.
While I think AIX was talking about the 2441TH the manual for the 2441ZTH shows Humidity High and Low settings.
While yes, I was talking about 2441TH, I, indeed, have exactly same picture. Although I can see Status triggers for humidity if I use thermostat in if clause in programs.