Hi @Max ok i do my best. 
An click of the Button (Button befor click) lets slide to left or fly out.
I think it’s called as a flyout conatiner. ??
Each content is then in this container.
For example:
-more buttons (Links) → Contactform
-Simple Text
-Phonenummer
-Social Icons.
…
or use the HTML </> function to embed other widgets
Oh dear, I think I’m addicted to elfsight. it’s fun to work with it