I recently upgraded my CBSubs site and have now just added GroupJive. When I integrate GroupJive to an existing CBSubs plan - how do I get the current subscribers into the GJ group? I don't want to have to do this one by one (I know I can do that). There doesn't seem to be any way to update the integrations to groupjive for existing subscribers and there doesn't seem to be an import function to import users into a group? Is there a way to do this?