Hi @misko and @sidestream84,
I think I got you both on another thread, but I've just completed porting my App and Driver for the Leviton VRCZ4-M04 Zone Controller from SmartThings to Hubitat Elevation. I'll probably do some additional tweaking, but you should find the current versions fully functional -- have a try and let me know?
See my posting to App and driver porting to Hubitat...
