How to add a non standard widget, spotlight Instagram feed?

If you have the html code from them, you can add an html Element to your page, and insert the html code in the box in the right hand column.
Otherwise we'll wait for the official support response.

Thanks, i thought already that should be achievable via embedding some HTML.

But you gave me the right hint which directed me to the documentation of spotlight.

https://docs.spotlightwp.com/article/540-embed-the-feed-on-your-site

There i could find the option to copy the shortcode, i added that it worked like a charm!

Thanks a lot MerlinAZ <3

Glad to help.