Hmm I see what you mean, lacking negate or the ability to modify hostgroup names. I suppose I would try creating a service template to apply, that resides in the static directory. Specifically I would have this template only negate hostgroups, so that it can be assigned without worrying about further complications. I realize this isn't ideal, so I put in a feature request to allow negating of host\service groups within CCM.
Nagios-Plugins maintainer exclusively, unless you have other C language bugs with open-source nagios projects, then I am happy to help! Please pm or use other communication to alert me to issues as I no longer track the forum.
Yeah, unfortunately that is the only real way to do this right now. We've had questions about it in the past and have an internal feature request in the works.
I can't wait for the day I ask a question that ends in someone telling me that I should RTFM. All my questions are answered with "yah, we'll be doing that someday."