It would be great to have a feature to mute alerts/unmanage nodes for a group.
You can do this now and easily, with a Node custom property.
If you were to assign the group name as a custom property such as Group_Name, then define the group with a dynamic rule where the custom property group_name = <group name>.
Then when you go to to your manage Nodes view (Under Settings), you will be able to filter the nodes by Group_Name, allowing you to select, edit and manage the group at the same time.
Looks similar to thwack.solarwinds.com/.../mute-alerts-for-a-group---multiple-nodes-at-once
