I found a great example but it’s not working even if I copy&paste it to the webix snippet. Is there anything that changed from that time?
You have to include sidebar.css and sidebar.js .
Thanks. It would be nice to mention it in the documentation that separate file is needed.
Sidemenu (included in Pro) and sidebar (free extension) are different components. Please check the relevant docs: https://docs.webix.com/desktop__sidebar.html