The drawer widget builds form a list of items similar to menu items.

What would be the proper way to have subitems like nested ul>li>ul>li?

Hello Jacques,

Thank you for sharing this scenario with us. As for now, it is not a present feature of the Kendo UI Drawer but it might be considered as a new one in one of the upcoming releases. 

A possible alternative I could offer is the Kendo UI Menu widget:

• https://demos.telerik.com/kendo-ui/menu/index

If you have the time you could submit a Drower feature enhancement in our UserVoice portal. Once it receives a reasonable number of votes and we are sure that this is the right direction to go it will be implemented.

Let me know if you have any questions.

Regards,
Nikolay
Progress Telerik

Hello Jacques,

Thank you for submitting this feature request.

 I can definitely see the value in it. The UserVoice platform is used by Product Management for future planning and implementation. The items which gain a lot of popularity are acted upon and included in the RoadMap. The status of it could be tracked at the following link:

• https://feedback.telerik.com/kendo-jquery-ui/1444628-kendo-ui-drawer-and-kendo-mobile-ui-drawer-should-support-hierarchies-of-ul-li-ul-li

Should you have further questions for the Kendo UI Drawer, please feel free to get back to me.

Regards,
Nikolay
Progress Telerik