Hello lee123 You may be able to accomplish this with custom properties and groups.
Are you trying to alert if all items on a map go down?
- If so you can group nodes manually or by using custom properties.
- Build a group and add each device individually from the map to the group.
- With custom properties you can tag all the devices for "Map A", then build a group and use a dynamic query to add all the "Map A" nodes
The alert part is simple with the group. If Group goes down then send Email.
I hope this helps
Thank you,
-Terrance