This add-on / plugin lets you insert an automatically generated table of contents in your emails based on their contents.
Let's say you inserted the 3 latest articles of your website in an email, and the upcoming events:
The big titles are "<h1>" tags, and the title of inserted content is always "<h2>" tags, so by inserting a table of contents with the following options:
We obtain something like this:
Clicking on the links will scroll down to the corresponding article (in this example the articles descriptions aren't shown to make it easier to follow). This is especially useful when you insert articles that have long descriptions and when using automatic campaigns.