Data Collection Manager User management

We are running a central DCM Server in our site to maintain the dataflow between different UA Connectors and different DataArchive/AF pairs. We use this DCM to restart Connectors and to browse and select new Tags on a OPC UA Server. As central Admins, we need the input from our plants in order to select the proper tags to be transmitted into DataArchive. As DCM tagbrowsing and selection is easy to use, we would like to provide our plant DCS engineers the possiblity to do the selection on their own, without our support. But as we are running DCM as central service, and there is no user management right now, every user who has accees can configure tags and routing for every connector, plant and DataArchive. We would like to have the possbility to provide plant users access to their Connector/Datasource only and only for Tagselection.