code: private List<CmsUser> getAllowedIndirects(List<CmsUser> allUsers, List<CmsUser> directUsers) {
  
          List<CmsUser> res = new ArrayList<CmsUser>();
          for (CmsUser u : allUsers) {
              if (!directUsers.contains(u)) {
                  res.add(u);
              }
          }
  
          return res;
      }
docs: Gets list of indirect users to show.<p>
  
  @param allUsers all users
  @param directUsers direct user
  @return indirect user