• Hover your mouse over any bar or portion of a bar in the chart to view more details about the respective time slot and number of alarms by severity in a tooltip (Figure).

• To zoom in to a portion of a stacked alarms chart, select the desired portion with  mouse (click and hold down left mouse button while dragging the cursor). The underneath alarm history list will display only the alarm(s) that existed in the selected time frame.

Figure: Zooming into a specific portion of the stacked alarms chart

 

• Click the Refresh button () at the upper-right corner of the frame to cancel the changes and display the initial alarm information again.