Only admin can see the left "course/sessions" menu.

src/ChamiloLMS/Controller/UserPortalController.php

@@ -71,7 +71,11 @@ class UserPortalController extends CommonController
         };
         $app['knp_menu.menus'] = array('main' => 'my_main_menu');*/
         $app['template']->assign('content', $items);
+
+        if ($this->get('security')->isGranted('ROLE_ADMIN')) {
             $pageController->getSectionCourseBlock();
+        }
+
         $pageController->return_profile_block();
         $pageController->return_user_image_block();
         $pageController->return_course_block($filter);