Setting a search interval follows the same procedure for all types of archive search.
By default, the search spans across video footage / archive tracks currently displayed on the timeline (see Navigating Using the Timeline).
To specify an exact interval, you must specify its start and end points. To do this, press the corresponding 
button and set the search limit.
Also, you can select a preconfigured search interval from the drop-down list.
If you select Next 5min / 15min / 30min / 1h / 3h search will be performed in the interval: [specified start of the interval; specified start of the interval + 5min / 15min / 30min / 1h / 3h].
If you select Last 1h / 3h / 6h / 12h / 24h , the last hour (or 3, 6, 12, 24) of the entire archive will be analyzed.