Virtual Thermostat with Eurotronics Spirit + Aqara temp sensor


I would like to create 3 virtuals thermostats for 3 differents rooms.
I’ve (will have) 3 Eurotronics Spirit and 3 aqara temp sensor. (1 ES and 1 Aqara in each room).

For now, just aqara temp are installed in each room.

I tried to create a virtual thermostat with VThermo and with Homey Heating Scheduler but they didin’t monitor current temp (aqara sensor). There is just “–”

So my question is : How to create a Vitural Thermostat ang get current temp based on the average between aqara temp sensor and temp sensor of eurotronics ?

Thank you for your help !