Thank you for writing.
Straight to your questions:
1. Please refer to the DocumentInsertOrder section in the following article: http://www.telerik.com/help/winforms/dock-architecture-and-features-document-manager.html
2. To control the location of the added ToolWindow you can use the DockWindow method of RadDock: http://www.telerik.com/help/winforms/dock-object-model-creating-toolwindow-and-documentwindow-at-runtime.html
. As to the size, you should use the SizeMode property and control it as per your needs: http://www.telerik.com/help/winforms/dock-object-model-example-building-an-advanced-layout-at-runtime.html
3. You can use the CloseAction property of a window, and set it to Hide. Then you can show a previously hidden window: http://www.telerik.com/help/winforms/dock-object-model-toolwindow-and-documentwindow-properties-at-runtime.html
I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.
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