We were able to create a hierarchy within a space. We renamed Spaces to Communities. Within Communities we are able to create sub-communities, groups, events. We are video so only videos are allowed. To assign a group or an event to a community you have to use the Visibility menu when setting up the Group. For example, if your space is called Sports, when setting up a group called Football choose Sports from the visibility choices. The Football group will now appear in Sports. Of course, make sure Groups is part of the submenu of Spaces. To set this, Studio - Navigation - Spaces - View Spaces Submenu. Then repeat the same steps for Events.