I would be great if we could assign more granular controls to users. For example I would like my operators to be able to unmanage the host system they work with before rebooting it, but only allow them to have read only access to the rest of the nodes. To allow them admin access to one host you must either remove all access to others or give them admin access to all.
Having the ability to grant admin access to certain devices, but allow them to still see others would be ideal.
