It seems like your question is related to the Kendo UI Professional product but you posted in the Telerik Platform
forums. To be able to get help with setting the Kendo UI TreeView, you should post in the Kendo UI forums
or in the community boards like Stack Overflow.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items