oXygen XML Author is a cross platform Visual XML Editor, based on the oXygen XML Editor.

It supports visual XML editing driven by CSS stylesheets for DITA, DocBook 4 and 5, TEI P4 and P5 and XHTML.

The DITA Maps Manager side panel allows viewing, editing and publishing of DITA map files. It acts also similar with a project manager allowing you to easily open different topics/concepts for editing. The toolbar, the contextual menu and drag and drop actions allow you to change the map content.