Sidebar is not expanding beyond 2nd level

after reading https://docs.webix.com/desktop__sidebar.html i can confirm the comment, that sidebar is not expanding beyond second level, while tree view is working fine on same data.

snippet: https://webix.com/snippet/22db84a1

Truly, the sidebar menu cannot contain more than one submenu level. It was made by design.

You can try the tree and its custom templates/CSS from our admin-app demo.

Code of tree;

Custom templates for the tree;

CSS you’ll find here. Please note: the original style assumes that there’s only one sub-level.

Finally, the basic implementation can look like this:

http://webix.com/snippet/a81b5c3a

Thank you. Please consider changing blog entry :
https://blog.webix.com/sidebar-and-sidemenu/
"Sidebar is based on Webix Tree. It offers nice visualization of hierarchical data with any complexity level. "

It was our mistake, thank you for pointing this out.
We will update the article with the proper description.