Help > Authoring > Using Markup > Inserting > Inserting Tags from the Document Type Viewer > Using the Document Type Viewer window
  
Using the Document Type Viewer window
To insert a tag at the next valid location in the Edit window document, click the tag name, then select Edit > Insert.
To expand or collapse a part of the Document Type Viewer structure, click the tag name, then select View > Collapse/Expand.
To search forward in the Edit window document for the tag marked in the Document Type Viewer, click the desired tag name, then select Edit > Find Forward.
To search backward in the Edit window document for the tag marked in the Document Type Viewer, click the tag name, then select Edit > Find Backward.
To update the Document Type Viewer display based on the new cursor position and document structure in the Edit window, select File > Update Display .
To open the Print dialog box to print the Document Type Viewer window, select File > Print.
To close the Document Type Viewer and the Document Type Viewer Help window, select File > Close.