The Outline Editor displays a hierarchy of documents that is similar in design to a common table of contents. This document hierarchy appears in the left pane of the editor and is called an outline. The outline can consist of any number of module and/or section documents and their related topics and can span as many levels as you want.
The content that you see in this editor is defined by the module or section document that you open and is typically not the entire content Library. This allows you to either explore a complete outline by opening what is referred to as the "root" document or focus in on a specific area of the outline by opening a specific module/section document depending on how you have designed your outline.
The Outline Editor lets you create and modify an outline by linking new or existing documents, moving or copying existing documents, removing document links, and so on. You can also display conceptual and introductory content such as web pages, packages, and URLs or document properties such as Last Modified Date, Role, State, and so on.