To Control Whether Elements in a Reference Can Be Identified (for Construction)
Do one of the following:
In the References dialog's list box, click the Locate column of the entry for the reference.
or
From the References dialog's Properties menu, choose Attachment. The Attachment Properties dialog opens for the selected reference. Turn the Locate check box on or off.
or
In the References dialog's list box, double-click the reference. The Attachment Properties dialog opens for the selected reference. Turn the Locate check box on or off.