Thumbnails on index pages?

You'll need to edit your template's entries.html file to include the thumbnail. Add something like this inside the {{#entries}} ... {{/entries}} block:

{{#thumbnail.medium.url}}
<img src="{{{thumbnail.medium.url}}}"/>
{{/thumbnail.medium.url}}

Does that help? Please let me know if you have any questions about this or anything else

thanks! it works, kind of. This simply adds a picture to below the text. Would it be possible to have the picture to the left of the text?

I would like the effect to be similar to what happens in magazine, but with much smaller icon

For sure it is possible, but you'll need to dig into your template's CSS to make these layout choices happen. If you need a nudge in the right direction, I highly recommend using some sort of AI tools to generate this for you – ChatGPT will be able to work this out pretty quickly