@ProcessAdditions
	void processAdditions(MApplication app){
		MTrimmedWindow window = (MTrimmedWindow) application.getChildren().get(0);
		Object perspectiveStack = findStack(window);
		((Notifier) perspectiveStack).eAdapters().add(new AdapterImpl() {
			@Override
			public void notifyChanged(Notification msg) {
				if (msg.getEventType() == Notification.SET
						&& msg.getFeatureID(Integer.class) == AdvancedPackageImpl.PERSPECTIVE_STACK__SELECTED_ELEMENT) {
					// this is the action executed
					System.out.println("Perspective Changed !!");
				}
			}
		});
	}