Copy group permssions to new group in SharePoint 2013

Is it possible to copy a group's permissions, for example, Team site Members, to a new group name, have all of the permissions copy over and then assign people to the new group to use in SharePoint?  Is so, how is it done?  We want to tweak some of the permissions for a group but we want to keep the original groups permissions in tack and set up a new group that we can play with the permissions.

Thanks,
John