Comelit MT COMELIT VSC IP START SERIES - Manual (Page 19)

2.3.1.1 Right-click on map name
Delete map
Delete the current map
Add child map
Add a sub map for the current map, there are 2 levels for each main map, so
it can not add a new map under the sub map.
icon will appear on the main map, double click to open the sub map
(it is only available if the map situation is ). Click icon on sub-
map to return to the main map.
2.3.1.2 Right-click on / icon
Select the channel in the device list and drag on the map to successful set up
defence. As figure below: