Maestro Thermostats and external temperature sensor

Good Day,
I have 4 thermostats Stelpro Maestro that are working well.
However one room has a mezzanine and the thermostat being upstair, the room downstairs is pretty cold.
I have a multipurposes sensor downstairs
I know that some smart app can force the thermostat to follow the sensor but this doesn’t work with my routines that are changing all thermostats temperatures if I’m here.
Indeed the Smart App will force the thermostat for an unique pre set temperature.

Is there a way for my thermostat to ignore the internal sensor and to only use an external sensor (changing something at the device level)?
Like this the thermostat will follow my automations and change temperature based only on the external sensor ?

Thank you