In Advanced Mode, the Alarm Log panel provides detailed information: camera view, alarm details, thumbnails of alarms.
Click the Filters toolbar button.
Viewed shows only those alarms that have already been viewed.
Unviewed shows only those alarms that have not yet been viewed.
All shows all alarms.
Marked shows only those alarms that have already been marked (acknowledged).
Unmarked shows only those alarms that have not yet been marked (acknowledged).