To open the Warehouse Target Table notebook :
From the Data Warehouse Center window, expand the Targets folder until you find the Tables folder for the warehouse target that you want to work with.
If you are creating a new warehouse target table, right-click the Tables folder, and click Define. The Define Warehouse Table notebook opens.
If you are editing an existing warehouse target table, click the Tables folder. Any existing warehouse tables are displayed in the pane on the right side of the window (the contents pane). Right-click the warehouse table that you want to work with and click Properties from the pop-up menu. The properties notebook for that table opens.