To add sensors and relays to the map:

1. Right-click the icon of the video camera on the map. A context menu appears.
2. To add a sensor, select Add sensor (1). To add a relay, select Add relay (2).
   
3. In the list, select a Sensor or Relay object.
   

Sensors and relays have now been added.

By default, the icons of the sensor and relay are attached to the video camera's icon. If you move the video camera icon, the icons of all of the video camera's devices are moved as well.

However, you can detach the sensor and relay icons from the icon of the video camera. To do so, move them. Then the sensor and relay icons are moved independently.