Hello Jill-Connie Lorentsen,
Thank you for contacting us.
You can use
LocalizationSettings property of the DockingManager to localize the context menu. About the menu changes you can use the DockPanel.DockContextMenu.DropDownOpening event handler.
Do not hesitate to contact me back if you have further questions.
Best wishes,
Julian Benkov
the Telerik team
Check out
Telerik Trainer , the state of the art learning tool for Telerik products.