You can select units using the area immediately above the map that can include the ALERTS, WARNINGS and ALL tabs, and options such as Fleet and Unit. Only selected units:
Appear on the ViewPoint map.
Appear in the Mailbox, Summary and Details tabs.
Are available for selection in the Locator tool.
Are listed in the Units panel. Note: The Units panel determines which of the selected units appear on the map.
By default, all units that have sent a tracking message within 90 days are selected and are displayed on the map.
The number of units that are currently selected is shown in the counter near the top-right corner of the map (just above SHOW HISTORY/SHOW LIVE). For example, '6/24' shows that you have access to 24 units, of which 6 are selected because they match your current selection criteria.
About the ALERTS, WARNINGS and ALL Tabs