help for making 2 areas into one webapplication (help please)

Hello

I am begin using vaadin for making one web app.(my first app)
i wat to make one webapp with 2 zones, one for the menu (one menubar) and another for the rest of the app (forms and lists).
for making this i have see the adressbook app and i have make my menubar in the top of the app using the bellow code but i dont know how to put the rest into the bellow part of the page.
i hace make this:



    private final MenuBar menubar = new MenuBar();

	private static final long serialVersionUID = 8777344968006307893L;

	@Override
	public void init() {
        buildMainLayout();
        //setMainComponent(getInitView());
	}
	
	 private void buildMainLayout() {
	        setMainWindow(new Window("Goikogane Kudeaketa"));
	        setTheme("contacts");
	        VerticalLayout layout = new VerticalLayout();
	        layout.setSizeFull();
	        layout.addComponent(createToolbar());
	        getMainWindow().setContent(layout);
	    }
	 private HorizontalLayout createToolbar() {
	        HorizontalLayout lo = new HorizontalLayout();
	     
	        MenuBar.MenuItem excursiones = menubar.addItem(ConstantesWar.EXCURSIONES, null, null);
	        excursiones.addItem(ConstantesWar.EXCURSIONES_ANIADIR, null, mycommand);
	        excursiones.addItem(ConstantesWar.EXCURSIONES_LIST_ALL, null, mycommand);
	        excursiones.addItem(ConstantesWar.EXCURSIONES_LIST_ONE, null, mycommand);
	        excursiones.addItem(ConstantesWar.EXCURSIONES_BORRAR, null, mycommand);

	        MenuBar.MenuItem imagenes = menubar.addItem("Imagenes", null, null);
	        imagenes.addItem("AƱadir", null, mycommand);
	        imagenes.addItem("List. todas", null, mycommand);
	        imagenes.addItem("Editar", null, mycommand);
	        imagenes.addItem("Activar/desactivar", null, mycommand);
	        lo.addComponent(menubar);
	        lo.setMargin(true);
	        lo.setSpacing(true);
	        lo.setStyleName("toolbar");
	        lo.setWidth("100%");
	        return lo;
	    }
....................

how can i put into the bellow part my forms? just i another layout?
can you help me please?

thanks

You can add many components to a Layout; in your case you can just do

layout.addComponent(createToolbar());
layout.addComponent(createOtherThings());

and implement that createOtherThings method with whatever you like.