Oxygen XML Author is a cross platform Visual XML Editor. Supports visual XML editing driven by CSS stylesheets with specializations for DITA, DocBook 4 and 5, TEI P5, XHTML. This support includes document templates for easily creating new XML instances, CSS for WYSIWYG like editing, interface actions for creating and editing lists, tables and marking up specific content, XML Catalogs for faster access to resources, schema files for validation, transformation scenarios to convert from XML to HTML and/or PDF. The DITA Maps Manager allows viewing and editing 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 easily edit the map content. The XML content included using XInclude or XML entities is presented in place as a read only block that can be collapsed/expanded.