The Extended Data tab of the Properties palette contains the following object properties:
- Hyperlink: You can add a hyperlink to an object.
- Text Notes and Reference Files: You can add a note or an associated reference file to an object.
- Property Sets: You can add, edit, and remove property set data for an object. Note: The listing of the properties set definition in the Extended Data tab can be controlled using the Properties Override drop-down options in AEC Object setting tab in the Options dialog box.
- Property Sets From Style: You can add, edit, and remove property set data for the object style.
- Detail Component Data: You can add, edit, and remove detail component data for an object.

Property set data on the Extended Data tab