I am not sure if this is a bug or not but the Target button on the Alarm history component does not function as I would expect it to.
The way I would like and assume it would function is to select an alarm in the list and see filter the table according to the eventid. This way I would see only the rows for when this single alarm went into alarm when it was ack, and when it was cleared.
Right now it looks like the target is filtering the dataset on the alarm source field and not the eventid field. I would hope this is not the intended function and just an oversight.