You can open schematic diagrams that have been saved in a geodatabase.

Click the Open Schematic Diagrams button. Navigate to the C:\arcgis\ArcTutor\Schematics\Schematics\ElecDemo geodatabase and select the Feeders schematic subfolder. Click Feeder 0801-Rice Creek in the diagram list and click Add. The diagram opens in a new data frame under the Geography data frame. You can collapse the Geography data frame for a better view of the table of contents.

In order to see both the diagram and the original data you can open a new viewer window.

Click Window on the main menu and click Viewer. The open diagram is displayed in a viewer window.

Activate the Geography data frame to visualize the geographic features. Resize the viewer window and use the Pan tool to arrange all data and to be able to work with the schematic diagram and geographic features side by side on-screen.

Note: Any schematic layout algorithm execution, schematic command triggering, or manipulation using any schematic tool (such as Schematics editing or refinement tools) can be done inside a viewer window.