- Double-click the AEC dimension to which to attach information.
- Click the Extended Data tab.
- To add a hyperlink, click the setting for Hyperlink, and specify the link.
- Click the setting for Notes, and add a note. Then, click OK.
- Click the setting for Reference Documents.
- Attach or detach reference files:
If you want to... Then... attach a reference file click 
, select a file, and click Open. edit the description of a reference file enter text under Description. edit a reference file double-click the reference file name to start its application. detach a reference file select the file name, and click 
.