Smart valve hysterisis

I have Smart thermostat and smart valve in the room "bedroom". Thermostat is set as a Hysterisis (because I use wood stove) but in the other room "Child" it looks like Advanced mode is used instead of hysterisis, why is that i want that both Smart thermostat and the valve in other room are behaiving like Hysterisis if i selected Hysterisis for Smart thermostat