Alarms can be removed from both the "Main" and the "Traffic Statistics" tab. Both triggered and defined alarms can be removed.
Main
In the "Main" tab alarms can be removed by cliking on the delete icon to the right of the alarm in the alarm windows, or by choosing "Delete alarm" in the right click menu.
Traffic Statistics
In the "Traffic Statistics" tab alarms can be removed by choosing "Delete alarm" from the rightclick menu.