add group to extension

[VoiceFromThePast]

NooBoss shows the groups an extension is in. Nice. It would be handy to be able to add more groups from that screen. Here is why.

I have many more extensions than groups. It would save a lot of initial setup time to be able to run through extensions and pick which groups to add them to. At other times I might wish to pick a group and add a specific extension. Please don't remove that capability. Have both.

I only know one extension manager that has the capability requested above, Extensioner. Am mentioning this in case anyone wants to sample the add group to extension approach. I greatly appreciate NooBoss. Export-Import capability especially appreciated.