docs: protected ComboBox<CmsRole> getRoleComboBox(String ou) {
  
          ComboBox<CmsRole> box = new ComboBox<CmsRole>();
          CmsUserEditDialog.iniRole(A_CmsUI.getCmsObject(), ou, box, null);
          box.setSelectedItem(CmsRole.EDITOR.forOrgUnit(ou));
  
          return box;
      }