How to show summaries on posts page

Hi wp community!

Has anyone figured out a way in Swell Lite to show summaries only, instead of the full post on the posts page?

In settings>reading I have set it to ‘summary’ but it still shows the full post

Is this something that is available in the premium version?

Or does anyone know how to change the code in index.php or content php?

Thanks – any advice is appreciated.

Ruth