AutoCAD 2008 User's Guide > Share Data Between Drawings and Applications > Work with Data in Other Formats > Import, Attach, or Open Other File Formats > Attach DGN Files as Underlays > Attach and Detach DGN Underlays > Detach DGN Underlays > 
Detach DGN Underlays
Concept Procedure Quick Reference
 
 
 

To unload or reload a DGN underlay

  1. Open the External References palette.
  2. In the File References pane, select a DGN underlay.
  3. Right-click, and click Unload or Reload.

    When unloaded, the DGN underlay is still linked to the drawing file, but it is not displayed in the drawing.

 Toolbar: Reference 
 Command entry: EXTERNALREFERENCES
 Shortcut menu: Select a DGN underlay and right-click in the drawing area. Click External References.