You can use the group buttons to control the functions of a camera group (provided that group functions were defined in the Group functions dialog box). A group function enables you to switch on/off lights, open a door and make an announcement for a predefined camera of this group, regardless of the currently displayed camera. You can also assign the functions for switching on/off lights and opening doors to several cameras of this group, enabling you to switch on/off several lights or open several doors.
In addition, you can right-click on the group buttons to open the corresponding shortcut menu and even control cameras that are not part of the current group. Before you can do this, the cameras have to be set up accordingly, that is, they need to be connected to door openers/light contacts and have to be configured properly.