Document Type Toolbar Customization
You can add the actions you already defined to the toolbar. In this screen
capture you may see how the DocBook actions were added to the toolbar. You can
remove the ones you do not use, while adding new actions that insert for instance
the XML document fragments you are using more often.

Other screenshots:
WYSIWYG XML Editor
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 DITA editor
WYSIWYG TEI editor
WYSIWYG XHTML editor
A Custom Layout for Views
A Custom Layout for Editors
Print Preview
XSLT debugger perspective