To Add Objects to an XRef Record

1. In the XRef Objects dialog, highlight an XRef record (in the top list) that contains objects that have not already been added to the scene.
2. On the Entities List toolbar (the lower toolbar), click (Add Objects).

   This button is not available if all of the objects in the source file have already been added to the XRef record.

   The XRef Merge dialog appears.

3. Highlight the objects that you want to add as XRefs, and then click OK.

   The selected objects are added. Depending on the dialog settings, transforms and materials might also be added as external references.