In Home / Device Management / Device Details I can search, making the rule expression
Device.IP.Address contains "172.16.0.", all the devices i need to investigate.
Then, from the "search result" box, I can select all the devices from "Select all" and so
I can view all the informations about those devices.
But from Notification Services / Notification Groups, selecting "Add" and
the devices with the same rule expression, I can find all my devices, but
1) I'm not able to check the "Select all"
2) Selecting one by one all the devices and, selecting the alert severitiy, the alert status, the event set, the event severity and the event status, checking "Next" this error occurs:
"The devices contained in the subscription are no longer found in the Inventory".
Then I can't see anymore the previous devices list in the "search result" box.