I need the feature. Why was it removed is beyond my understanding! Any known workaround without messing all configurations would be welcomed...
My setup is a bunch of remote sites, with switches and servers and at least a router in each. My plan is ONE! severe alert rule for each site based on the node that is down (if the router and/or switch are not DOWN, based on location/ip/name, and ONE! critical rule for all routers/switches... =n+1 rules.
If there is a way to get individual alerts based on groups with a single rule, it would be even better.
The answer support will provide will be to use the "Action Manager". This allows you to keep all of your alerts Enabled yet you can disable the actions they trigger. I was looking for the same feature once I upgraded and had to reach out to support for clarification.