Administration Tool BIEE

 I have a repository in subjetc several areas, I want to work on a shared repository for each user to make changes in their area and to publish in a single repository located on the Server. When I create user groups and all should be as an administrator to loguearme? also if I remove permissions to a user to only see their subject area at the end of local merge this user has access to every subject area and modify, so I have configured for a specific area??