Hi Eric
Thanks for your query. Just right-click anywhere on the document window, and choose Extension Manager. In the Extension Manager dialog, select the "Map to Abstraction Model" check box (this will automatically turn on the "Map to Relatonal View" option). If you want to see the relational schema diagram rathe thand just access the schema from the Obeject browser, also check the Relationaql View option.
For more details, please see the NORMA labs posted in the Library -- we should be updating most of these soon.