In TYPO3, a Section Index refers to a special kind of site map that might be better described as a table of contents for the current page.
The Section Index contains links to each content element within the current page. It is an outline of the page and is most often found at the top of a Web page.
If you've worked with HTML previously, you might associate the Section Index with the "page anchor" concept that enables visitors to jump to a later section of the page.
This page has a Section Index at the top!


The Section Index allows visitors to quickly identify if an answer to their question is likely to be located on the current page. It is especially important in a page where a visitor must scroll down more than once or twice to reach the end of the page.
Tip: Both Section Index choices in the Sitemap Menu type drop-down will create a Section Index. The only difference is that the +Indented variant will obey the heading levels of your content elements, creating a nested list instead of a one-level list.
The section index will be automatically generated using text from the Header field of each content element within the page.
To prevent a content element from appearing in the list,
If you have used other HTML editing tools, you may have inserted page anchors before.
In TYPO3, page anchors are automatically created for you with each content element.
To create a "jump-to" point, or anchor, in the page, you should put the content into another content element.