Starting the Alert Browser and Displaying Alerts 
Use
The alert browser is used for analyzing and managing alerts. If the alert monitor is showing alerts, then you should switch to the alert browser to work on them.
Procedure

The alert browser displays all alerts that are "lower" in the monitoring tree than the MTE on which you clicked. Clicking high up in the tree lets you view all alerts in a whole branch of the tree.
For example, if you click on the top line in the monitor tree (the name of the monitor), then the alert browser shows all alerts that have been triggered for the MTEs in that monitor.
See also:
Completing Alerts Reorganizing Completed Alerts Displaying Completed Alerts