Hi Simon,  From the Alarm Console, select a new tab.  Then from the new tab, check include alarms, then select apply filters.  In the popup next to Range select 'Last Hour', which will bring up a time selection window, and select the timeframe of alarms you would like displayed then select Show Alarms.  This will display all alarm events for the selected timeframe.

Hi Simon,

It is not completely possible. If you follow the suggestion of Steve, the active alarms older than 4 days will not be shown.

A second option is to create a sliding window and check the option "Keep active alarms". However for a sliding window it is not possible to select a time range greater than a day. This means that you will only see the cleared alarms of the past day and all the active alarms.