private void addConsoleAppenderPerformed(AjaxRequestTarget target) {
    LoggingDto dto = getModel().getObject();
    AppenderConfiguration appender = new AppenderConfiguration(new AppenderConfigurationType());
    appender.setEditing(true);
    dto.getAppenders().add(appender);

    target.add(getAppendersTable());
  }
 private void appenderEditPerformed(
     AjaxRequestTarget target, IModel<AppenderConfiguration> model) {
   AppenderConfiguration config = model.getObject();
   config.setEditing(true);
   target.add(getAppendersTable());
 }