If you have a room sensor that is not being used in a room you can use it to control the smart plugs or the single/dual channel receivers. Create a new room on the app which is a 'radiator room'. Add a smart plug into it (by using the blue spanner and cog button on the 'add a device' menu on the setup page for that room. Note the ID number of the smart plug is referenced on the 'Choose a datapoint or node to assign to a room' page. Set the 'Successive minutes of activity to trigger heating' to 1 minutes minimum. Set the 'Successive minutes of inactivity to stop heating' to as long as you want the smart plug to stay on for. Set the 'active temperature' on the main page for that room to 28º to make sure that the room is always cold enough to call the smart plug on. The smart plug in this case thinks it is being used to control an electric heater. If you leave the room on the app in Super Eco mode then it will only turn on the switch when it senses activity, and if you put it into Eco or Comfort mode then it will keep the switch on when it learns that the area of the property is being used. You cannot share the Room Sensor between a room that is used for heating with 'footprint mode' and a room that is used to control a smart plug also using 'footprint mode'. This is because the occupancy triggers are taken from the Room Sensor and are applied to the first room that the Room Sensor is assigned to. This means that only one of the rooms will work in the 'footprint mode'. If the Room Sensor is shared between rooms then the temperature can be applied to multiple rooms.Step-by-step guide