Revision Notes — The Revision Log is useful when making changes to content. Before saving or publishing a page you’ve made edits to, you can quickly describe the changes made to that page. This is helpful when you, and other content managers, refer back to that page and want to know what was updated during that revision.
Table of Contents — On Topic Pages, a Table of Contents (TOC) can be automatically generated. The TOC will display at the top of the page under the title.
Trash — You should only use Trash for content you no longer need and are comfortable permanently deleting.
Using Taxonomy — Creating a taxonomy system allows content to be better categorized and more find-able for users. Taxonomy terms are grouped into vocabularies, and can then be referenced from within content items.