Group administrators will have the same rights as the group creator, except they will not be able to delete the group, but also be responsible for the content monitoring of your group. This should prove to be best for all in the future. This will not effect any previous groups.
Will be happy to add your group ideas relating to your particular interest.
https://timespast.ning.com/profile/calfkillerotr
If you would like to join a private group, just ask.
Robert