How to detect TRV Controller 'heating' and turn on Heating?

Ok sorry to keep pestering people

I am mid move of all my devices.

I have the Heating - Radiators (boiler and pump) under HE control

I have ZWave TRVs under HE Control

I have Temperature and Thermostats under HE

I have the TRVs under HE Thermostat Controllers

I have the Thermostat Controllers under HE Thermostat Scheduler

How do I in HE detect when the TRV Controllers go into 'Heating' State to turn on the Heating - Radiators (Boiler/pump)?

I am manually turning on the heating right now when I notice a temperature has dropped

I have Thermos

I am not familiar with TRVs. Do they indicate heating calls by connecting two terminals like a thermostat does? If so, one of your options would be to use a Zooz ZEN16 multi-relay in combination with a Zooz ZAC93 relay.

@reid.a.baldwin Thanks

They set a state in the Device Mode 'heating' to demand heating and 'idle' when no heating required.

I think I may have figured it out with a Rule - trying it out now.

Fine with the Turn on Heating as ANY Thermostat Controller will trigger with 'heating' it now trying to work out a way of turning off heating when ALL Thermostat Controllers are 'idle'

Ok it looks like you set a rule if ANY Thermostat Controller State = "heating" turn on Heating system

and

If ANY Thermostat Controller State changes AND ALL Thermostat Controller States are NOT 'heating' then turn off Heating System