Hi Tim Runyan,
I am sorry for the delayed reply!
We updated the example where hierarchy was no longer used but it seems we have not updated the description to reflect the new example.
Thank you for bringing our attention to this!
The control has no built-in hierarchy but TabControls can be nested to achieve a similar effect (you just place a TabControl in the Content of a TabItem.
Your Telerik Points have been updated for your feedback.
the Telerik team
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