There are several types of content that you can author using Document! X:
Authoring Conceptual Topics
If you would like to create free format Topics in addition to those generated by Document! X automatically, you can do so using the Topic Editor. The Topic Editor allows you to manually author free format content such as tutorials, getting started guides and task focused help.
The Topic Fundamentals topic covers the basics of working with Topics and using the Topic Editor.
Authoring .NET Xml Source Comments
Document! X includes a Visual Comment Editor integrated with Visual Studio 2010, 2012, 2013, 2015 and 2017 RC . The Visual Comment Editor makes it easy to author, review and edit content that you want to store as Xml format source comments in .NET source code.
Authoring Additional Reference Content
If you would like to supplement the content of the pages automatically generated by Document! X outside of the source code, you can do so using the Document! X Content File Editor. The Content File Editor allows you to review and author content for any item for which a reference documentation page is generated.
Creating Rules based Reference Content with AutoDoc
The AutoDoc overview topic contains more information about the AutoDoc feature.