We use a SAS Grid which we access the workspace servers through EG or SAS Studio. We can access the ODS Graphics Designer through both of these environments but it opens a new workspace session on a grid node. This means that any librefs I've defined in my EG session are not passed through the ODSGD. This means that we're stuck with the datasets that SAS supplies with the SAS installation (SASHELP, etc.).
What we really need is for the Graphics Designer session to be part of EG or SAS Studio when installed as part of a Grid environment. In our previous SAS environment we used DMS and this interacted with the Graphics Designer so that we had access to librefs defined in our SAS session.