When configuring the Multiple objects detection tool, you must set the maximum permissible number of objects within the zone; exceeding this number leads to triggering the tool.

To do it, follow the steps below:

1. In the list of detection tools, select the Multiple objects (1).
   
2. Enter a value into the Number of Alarm Objects (2) field .
3. Click Apply.

When the number of objects in zone maxes out,  the  Start Time of Detection Tool Trigger event is generated. When the number of object in zone drops down below the threshold value,  the  End Time of Detection Tool Trigger event is generated.