Thank you for writing.
Regarding the first question, you can use the ToolWindow ToolCaptionButtons property to control the buttons that appear on the ToolWindow caption.
As for the question about controlling where users can dock windows and whether they can drag a window at all, you can use the DragDrop Service of RadDock. Here is a help article on the topic: Using the DragDropService. You can also see a sample application in our demos under Dock >> DragDrop Service.
I hope this will help you. If you have further questions I would be glad to help.
the Telerik team
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