The Edit Attachments action allows you to add or delete attachments (secondary content files) of CAD documents or dynamic documents. Typically, you use Edit Attachments to remove any stale secondary content, or, in the case of CAD documents, to attach an additional file (of a type recognized by the CAD application), that cannot be added in a CAD session.

For more information, see topics Editing Attachments of CAD and Dynamic Documents and Overriding Conflicts Caused by Secondary Content.