This is basically the same kind of thing you would have to do with a WPF menu. Normally when you want a keyboard shortcut for a command you either define an KeyBinding in the WIndow's InputBindings for that command and shortcut or for routedcommands where the shortcut is universal you would add a KeyGesture to the RoutedCommand's InputGestures. In either case you need to make sure that you have a command binding setup to handle the execute/canexecute of the command at the root level (e.g. window). Now if the command is a RoutedCommand and it has a KeyBinding in its InputGestures then the menu item will automatically show the first keybinding's gesture. If that is not the case then you have to provide the InputGestureText. In the case of wpf menuitems you would just set the InputGestureText directly however in the case of the ribbon since you are not dealing with menu items you need to set the attached MenuToolBase.InputGestureText on the ButtonTool in the menu.