docs: @Override
      protected void defineWidgets() {
  
          super.defineWidgets();
  
          // widgets to display
          // indexsource data (first block)
          addWidget(new CmsWidgetDialogParameter(m_indexsource, "name", PAGES[0], new CmsDisplayWidget()));
          addWidget(new CmsWidgetDialogParameter(m_indexsource, "indexerClassName", PAGES[0], new CmsDisplayWidget()));
  
          // resources block
          addWidget(
              new CmsWidgetDialogParameter(
                  m_indexsource.getResourcesNames(),
                  "resourcesNames",
                  "/",
                  PAGES[0],
                  new CmsVfsFileWidget(false, ""),
                  1,
                  10));
      }