The Kuma monitoring groups are nice if you want be sure a set of services/devices are up having an “at glance” status overview. That is any member of a kuma group is "and"ed in order to have the group status.
What about "or"ing kuma groups? is it possible? I would like to use them for presence detection, grouping all ips (pc, mobile, …) used by family members: id at least one is active that member is at home.
Is it possible? How to do it?
As someone who hasn’t dipped his toe into Kumo, how is yours setup?
Very likely not the cleanest solution, but you could bring them all into NR then do your logic there and then push out a mqtt topic that uptime kumo is monitoring.
Alternatively you could try for a feature request on the GitHub, it seems like something they could implement quite quickly.
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Second alternative sounds much more appealing.
The first is “business as usual” 
A simulare request Is alredy in GitHub !
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