Hi Rob,
This functionality is not supported out of the box. The proposed solution is a hack and since the post is old, it might not work anymore with the refactored Docking control.
We are aware of the demand and we have logged 2 PITS items related to this issue:
You can vote for them, track their status and see when they are going to be implemented.
Hope this info helps.
Kind regards,
Konstantina
the Telerik team
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