Controlling 2 motorised zone valves independently?

[petitpiton]

My home has conventional radiators on one floor and underfloor heating on the other. The floor with underfloor heating also has two heated towel rails. These towel rails are fed off the flow to the underfloor heating manifolds. I currently have Evohome controlling the radiators (with a zone valve) and the towel rails (with no physical valve between these and the boiler). It is proposed that the towel rails should have a motorised zone valve to control the flow just after branching from the UFH flow (also with new zone valve fitted to UFH flow after the branch point to stop unwanted circulation to the manifold when no UFH zones require heat). If we do this is there any way to get Evohome to control just the new zone valve just for the 2 'zones' controlling the towel rails and continue to operate only the existing motorised zone valve for the other heating 'zones'?

[Richard]

If you put HR91's or 92's on the towel radiators, the you don't need the zone valve on the towel radiator circuit...