Understand the Table of Contents
The Table of Contents (TOC) hyperlinks to headings displayed by level.
The table of contents (TOC) is an automatically-generated list of all headings (H1, H2, H3...) on individual How-To, Reference and Topic pages.The TOC allows users to quickly skip down the page to a specific heading. The TOC also highlights the page structure by indenting nested headings.
If the TOC container does not automatically appear, you may need to remove individual on-page CSS or Custom Site CSS that was configured to hide it.