WYSIWYG DITA editor
To start the content completion you just have to press ENTER. This presents
the list of elements that can be inserted at the caret position.
The toolbar at the top of the editor the contains the specific DITA
actions.

Other screenshots:
WYSIWYG XML Editor
Document Type Toolbar Customization
XML Grid Editor
Oxygen XML Editor in Japanese
Comparing Directories
Comparing XML Files
The Tree Editor
Visual XML Schema Editor
Logical Model View
Visual RelaxNG Schema Editor
XSLT Editor
XML Database Perspective
SVN Client
WYSIWYG DocBook editor
WYSIWYG TEI editor
WYSIWYG XHTML editor
A Custom Layout for Views
A Custom Layout for Editors
Print Preview
XSLT debugger perspective