Our CEO needs to be able to view historical trends at a glance. Currently, each device has a 24-hour view, but we would like to be able to view devices for longer (week, month, etc), or compare several devices in a timeline format (compare which devices are having problems, or if issues are isolated to a single device while other devices are working fine).

It would be incredibly convenient to have flags on the timeline marking the time of the alert and time of resolution (red and green, respectively).