docs: public void addCurrentSubsite(String referencePath) {
  
          CmsADEConfigData configData = OpenCms.getADEManager().lookupConfiguration(m_cms, referencePath);
          String basePath = configData.getBasePath();
          if (basePath != null) {
              addOption(
                  Type.currentSubsite,
                  basePath,
                  Messages.get().getBundle(OpenCms.getWorkplaceManager().getWorkplaceLocale(m_cms)).key(
                      Messages.GUI_SITESELECTOR_CURRENT_SUBSITE_0));
          }
      }