// get current user and page
      $user = new User();
      $parentPage = Page::getCurrentPage();
 
      // create a new security group to administer employment app block and add current user to the group.
      $grpName = 'EmploymentAppAdmin'.$parentPage->getCollectionId();
      $grp = Group::getByName($grpName);
      if (is_null($grp)) {
         Group::add($grpName, 'Admin Group for btEmploymentApp block');
      }
      $grp = Group::getByName($grpName);
      $user->enterGroup($grp);
 
      //Add admin page and exclude from navigation
      $pageType = CollectionType::getByHandle('left_sidebar');
      $newPage = $parentPage->add($pageType, array('cName' => 'EmploymentAppAdmin', 'cDescription' => 'Administration page for Employment Application', 'cHandle ' => 'EmploymentAppAdmin'));
      $newPage->setAttribute('exclude_nav', true);
 
      // Give the custom security group permission to view the page and prevent Guests from viewing.
      $newPage->setPermissionsToManualOverride();
      $newPage->setPermissionsInheritanceToOverride();      
      $pk = PagePermissionKey::getByHandle("view_page");
      $pk->setPermissionObject($newPage);
      $paGlobal = PermissionAccess::getByID($pk->getPermissionAccessID(), $pk);
      $pa = $paGlobal->duplicate();
      $addTheseGroups = array($grp);
      foreach ($addTheseGroups as $addMe) {
         $pe = GroupPermissionAccessEntity::getOrCreate($addMe);
         $pa->addListItem($pe, false, 10);
      }
      $removeTheseGroups = array(Group::getByID(GUEST_GROUP_ID));
      foreach ($removeTheseGroups as $removeMe) {
         $pe = GroupPermissionAccessEntity::getOrCreate(Group::getByName($removeMe));
         $pa->removeListItem($pe);
      }
      $pa->save(array('paID' => $pa->getPermissionAccessID()));
      $pt = $pk->getPermissionAssignmentObject();
      $pt->assignPermissionAccess($pa);