To expose special columns for all tables in the RPS mapping
Right-click on any row in the Tables table and then select the Expose Special Columns for All Tables command from the popup menu that is displayed.
All special columns in all tables in the RPS mapping are then exposed for inclusion in the relational database tables; that is, each check box in the Special Columns pane for a selected table is checked, indicating that the _operation, _tranid, _timestamp, and _edition special column will be replicated as columns in the relational database tables.