OpenTunnel Designer Help

To Attach the Active Model to Itself as a Reference (Self-Reference)

  1. Click the Attach Reference icon ( Drawing > Attach > Reference ).

    The Attach Reference dialog opens.

  2. Select the open DGN file and click Open.
  3. From the Model option menu, select the active model.
  4. (Optional) Type in a logical name and description.
  5. Attach the model as a coincident reference to itself.

    Note: The workspace preference Allow Editing of Self References (Reference category of the Preferences dialog) determines whether models that are attached to themselves (self-attached) are automatically updated to reflect modifications to the active model. Allow Editing of Self References is on by default.