We are happy to announce that hidden Vimeo videos can be displayed in our Social Feed app now 
To display hidden videos in your widget, you need to set the Embed type in the Vimeo settings.
Videos with Nobody Embed type will not be visible in the widget. So, to make them show up, choose Specific domains Embed type instead and add static.elfsight.com to the domain field:
Guys, have you tested the new feature yet? Feel free to share your experiences in the comments - we are all ears 