Can we use multiple webix widgets inside a custom webix component/widget?

Hi,
Is it possible to create a custom webix component/widget which internally uses other webix widgets (list, dataview, …)?

Yep, it is possible.

Here’s the noteworthy example created by our user:

http://forum.webix.com/discussion/6018/sharing-component-dndlist

Also, you can check our Sidebar extension (based on ui.tree and uses the popup).