[SW2] How to specialize an editCommand

Hi, I've created a SWGAlbum which inherit from SW2Page. This class has an instance variable called renderer. I want the user to be able to modify this instance variable selecting a value in a list : descriptionRenderer ^ (MASingleSelectionDescription selector: #renderer label: 'Type' priority: 110 default: SWGAlbumViewer) options: (MADynamicObject on: [ SWGAlbumViewer withAllConcreteClasses ]); beRequired; yourself. So I have created a specialized SWGEditAlbumCommand which inherit from SW2EditPageCommand. I have also created a SWGAlbum>>editCommand returning a new SWGEditAlbumCommand. My problem is that 2 'Edit' links appears in the command widget. One from SW2EditPageCommand and one from SWGEditAlbumCommand. How can I hide the one from SW2EditPageCommand ? Other question, how can I replace the 'Edit' button on top-left of the window (next to 'View') for it to launch my SWGEditAlbumCommand and not SW2EditPageCommand ? Thank you -- Damien