docs: private void addToolbarButtons() {
  
          Button add = CmsToolBar.createButton(
              FontOpenCms.WAND,
              CmsVaadinUtils.getMessageText(Messages.GUI_RESOURCETYPE_CREATE_NEW_TYPE_0));
          add.addClickListener(new ClickListener() {
  
              private static final long serialVersionUID = 1L;
  
              public void buttonClick(ClickEvent event) {
  
                  Window window = CmsBasicDialog.prepareWindow(DialogWidth.max);
                  CmsNewResourceTypeDialog dialog = new CmsNewResourceTypeDialog(window, CmsResourceTypeApp.this);
                  CmsMoveResourceTypeDialog moduleDialog = new CmsMoveResourceTypeDialog(dialog);
                  window.setContent(moduleDialog);
                  window.setCaption(CmsVaadinUtils.getMessageText(Messages.GUI_RESOURCETYPE_CREATE_NEW_TYPE_0));
                  A_CmsUI.get().addWindow(window);
              }
          });
          m_uiContext.addToolbarButton(add);
  
      }