I currently have 5 groups setup with anywhere from 5 - 20 devices in each group. Each device has several sensors. I would like to manage the notifications (email) for each sensor at the group level based on sensor type - is this possible? For example, I have PING sensor setup for each device in the group and I would like email sent to me if status changes from up to down and once it comes back up again. I would also like to monitor a specific service running on the device. All other sensors would not require a notification (email) to be sent out at this time. What is the best way to accomplish this?