diff --git a/plugin/ims_lti/ImsLtiPlugin.php b/plugin/ims_lti/ImsLtiPlugin.php
index d5e6dc03d0..4aa660a8b5 100644
--- a/plugin/ims_lti/ImsLtiPlugin.php
+++ b/plugin/ims_lti/ImsLtiPlugin.php
@@ -1,8 +1,12 @@
 <?php
 /* For license terms, see /license.txt */
 
+use Chamilo\CoreBundle\Entity\CourseRelUser;
+use Chamilo\CoreBundle\Entity\Session;
+use Chamilo\CoreBundle\Entity\SessionRelCourseRelUser;
 use Chamilo\CourseBundle\Entity\CTool;
 use Chamilo\CoreBundle\Entity\Course;
+use Chamilo\UserBundle\Entity\User;
 use Doctrine\DBAL\Schema\Schema;
 use Doctrine\DBAL\Types\Type;
 use Doctrine\DBAL\DBALException;
@@ -180,8 +184,8 @@ class ImsLtiPlugin extends Plugin
         $this->course_settings = [
             [
                 'name' => $this->get_lang('ImsLtiDescription').$button.'<hr>',
-                'type' => 'html'
-            ]
+                'type' => 'html',
+            ],
         ];
     }
 
@@ -238,4 +242,72 @@ class ImsLtiPlugin extends Plugin
     {
         return api_get_path(SYS_PATH).'src/Chamilo/PluginBundle/Entity/'.$this->getCamelCaseName();
     }
+
+    public static function isInstructor()
+    {
+        api_is_allowed_to_edit(false, true);
+    }
+
+    /**
+     * @param User         $user
+     *
+     * @return string
+     */
+    public static function getUserRoles(User $user)
+    {
+        if ($user->getStatus() === INVITEE) {
+            return 'Learner/GuestLearner';
+        }
+
+        if (!api_is_allowed_to_edit(false, true)) {
+            return 'Learner/Learner';
+        }
+
+        $roles = ['Instructor'];
+
+        if (api_is_platform_admin_by_id($user->getId())) {
+            $roles[] = 'Administrator/SystemAdministrator';
+        }
+
+        return implode(',', $roles);
+    }
+
+    /**
+     * @param int $userId
+     *
+     * @return string
+     */
+    public static function generateToolUserId($userId)
+    {
+        $siteName = api_get_setting('siteName');
+        $institution = api_get_setting('Institution');
+        $toolUserId = "$siteName - $institution - $userId";
+        $toolUserId = api_replace_dangerous_char($toolUserId);
+
+        return $toolUserId;
+    }
+
+    /**
+     * @param Course       $course
+     * @param Session|null $session
+     *
+     * @return string
+     */
+    public static function getRoleScopeMentor(Course $course, Session $session = null)
+    {
+        $scope = [];
+
+        if ($session) {
+            $students = $session->getUserCourseSubscriptionsByStatus($course, Session::STUDENT);
+        } else {
+            $students = $course->getStudents();
+        }
+
+        /** @var SessionRelCourseRelUser|CourseRelUser $subscription */
+        foreach ($students as $subscription) {
+            $scope[] = self::generateToolUserId($subscription->getUser()->getId());
+        }
+
+        return implode(',', $scope);
+    }
 }
diff --git a/plugin/ims_lti/form.php b/plugin/ims_lti/form.php
index ef26dba534..c4d59729a7 100644
--- a/plugin/ims_lti/form.php
+++ b/plugin/ims_lti/form.php
@@ -1,6 +1,7 @@
 <?php
 /* For license terms, see /license.txt */
 
+use Chamilo\CoreBundle\Entity\Session;
 use Chamilo\UserBundle\Entity\User;
 use Chamilo\CoreBundle\Entity\Course;
 use Chamilo\PluginBundle\Entity\ImsLti\ImsLtiTool;
@@ -21,47 +22,46 @@ if (!$tool) {
 
 /** @var ImsLtiPlugin $imsLtiPlugin */
 $imsLtiPlugin = ImsLtiPlugin::create();
-
+/** @var Session $session */
+$session = $em->find('ChamiloCoreBundle:Session', api_get_session_id());
 /** @var Course $course */
 $course = $em->find('ChamiloCoreBundle:Course', api_get_course_int_id());
 /** @var User $user */
 $user = $em->find('ChamiloUserBundle:User', api_get_user_id());
 
 $siteName = api_get_setting('siteName');
-$institution = api_get_setting('Institution');
-$toolUserId = "$siteName - $institution - {$user->getId()}";
-$toolUserId = api_replace_dangerous_char($toolUserId);
-
-$params = [
-    'lti_message_type' => 'basic-lti-launch-request',
-    'lti_version' => 'LTI-1p0',
-
-    'resource_link_id' => $tool->getId(),
-    'resource_link_title' => $tool->getName(),
-    'resource_link_description' => $tool->getDescription(),
-
-    'user_id' => $toolUserId,
-    'roles' => api_is_teacher() ? 'Instructor' : 'Student',
-
-    'lis_person_name_given' => $user->getFirstname(),
-    'lis_person_name_family' => $user->getLastname(),
-    'lis_person_name_full' => $user->getCompleteName(),
-    'lis_person_contact_email_primary' => $user->getEmail(),
-
-    'context_id' => $course->getId(),
-    'context_label' => $course->getCode(),
-    'context_title' => $course->getTitle(),
-
-    'launch_presentation_locale' => api_get_language_isocode(),
-    'launch_presentation_document_target' => 'embed',
+$toolUserId = ImsLtiPlugin::generateToolUserId($user);
+
+$params = [];
+$params['lti_message_type'] = 'basic-lti-launch-request';
+$params['lti_version'] = 'LTI-1p0';
+$params['resource_link_id'] = $tool->getId();
+$params['resource_link_title'] = $tool->getName();
+$params['resource_link_description'] = $tool->getDescription();
+$params['user_id'] = ImsLtiPlugin::generateToolUserId($user->getId());
+$params['user_image'] = UserManager::getUserPicture($user->getId());
+$params['roles'] = ImsLtiPlugin::getUserRoles($user);
+$params['lis_person_name_given'] = $user->getFirstname();
+$params['lis_person_name_family'] = $user->getLastname();
+$params['lis_person_name_full'] = $user->getCompleteName();
+$params['lis_person_contact_email_primary'] = $user->getEmail();
+
+if (api_is_allowed_to_edit(false, true)) {
+    $params['role_scope_mentor'] = ImsLtiPlugin::getRoleScopeMentor($course, $session);
+}
 
-    'tool_consumer_info_product_family_code' => 'Chamilo LMS',
-    'tool_consumer_info_version' => api_get_version(),
-    'tool_consumer_instance_guid' => api_get_setting('InstitutionUrl'),
-    'tool_consumer_instance_name' => $siteName,
-    'tool_consumer_instance_url' => api_get_path(WEB_PATH),
-    'tool_consumer_instance_contact_email' => api_get_setting('emailAdministrator'),
-];
+$params['context_id'] = $course->getId();
+$params['context_type'] = 'CourseSection';
+$params['context_label'] = $course->getCode();
+$params['context_title'] = $course->getTitle();
+$params['launch_presentation_locale'] = api_get_language_isocode();
+$params['launch_presentation_document_target'] = 'iframe';
+$params['tool_consumer_info_product_family_code'] = 'Chamilo LMS';
+$params['tool_consumer_info_version'] = api_get_version();
+$params['tool_consumer_instance_guid'] = str_replace(['https://', 'http://'], '', api_get_setting('InstitutionUrl'));
+$params['tool_consumer_instance_name'] = $siteName;
+$params['tool_consumer_instance_url'] = api_get_path(WEB_PATH);
+$params['tool_consumer_instance_contact_email'] = api_get_setting('emailAdministrator');
 
 $oauth = new OAuthSimple(
     $tool->getConsumerKey(),