If I rename a group will the members of that group have access to the forums to which the newly named group are given access?

I'm asking because I need to create new groups and have used the maxium 99 groups allowed by ubbthreads. I thought that if I can use the old groups by renaming them this might give me the extra groups I need but I don't want the members of the groups that I'm renaming to have access to the forums which the newly named groups will be given access.

Thanks,
Dan