docs: void setsDateSeriesHiddenFlag(boolean hide) {
  
          m_hideSeriesInstances = hide;
          if (m_hideSeriesInstances) {
              m_toggleSeriesButton.addStyleName(OpenCmsTheme.BUTTON_PRESSED);
          } else {
              m_toggleSeriesButton.removeStyleName(OpenCmsTheme.BUTTON_PRESSED);
          }
      }