Hello @dmargaritis,
Thanks for reaching out to us.
You can use Plain/HTML text, Saved Section, or Saved page on the content switcher widget. You can select the content type as shown in this screenshot.
You just need to save a section as a template or as a page first. You can follow this Elementor tutorial regarding how to save a section or page as a template form this link https://elementor.com/help/template-library/
You can follow this HappyAddons documentation for the content switcher widget. https://happyaddons.com/docs/happy-addons-for-elementor/widgets/content-switcher/
Thank you.
Due to the inactivity of the topic, I’m making this resolved.
Feel free to open a new one for further information. You can also reach us through our native support – support[at]wedevs.com.
Thanks!