Wondering if there is a feature in a civi mailing to create a summary of the various stories that are being included in a mailing whereby each story title in the summary is clickable and takes you further down in the email to the corresponding story.
There isn't an automatic feature but this is what html anchor tags do. See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#Linking_to_another_section_on_the_same_page
So at the top of your html mail you can put
<a href="#thing1">Thing 1</a>
and repeat for each title/summary, and then use the id in your stories lower down like
<div id="thing1">Here is the actual story.</div>