diff --git a/core/module/course/course.php b/core/module/course/course.php
index 2fdc5d1..e9fc7a4 100644
--- a/core/module/course/course.php
+++ b/core/module/course/course.php
@@ -55,7 +55,7 @@ class course extends common
     public static $alphabet = [];
 
     public static $groups = [
-        self::GROUP_VISITOR => 'Aucun'
+        'all' => 'Tous'
     ];
 
     public static $courses = [];
@@ -393,13 +393,16 @@ class course extends common
                 case "2":
                     foreach ($groupValue as $profilId => $profilValue) {
                         if ($profilId) {
-                            self::$groups [$groupId . $profilId]= sprintf(helper::translate('Groupe %s - Profil %s'),self::$groupPublics[$groupId], $profilValue['name']);
+                            self::$groups[$groupId . $profilId] = sprintf(helper::translate('Groupe %s - Profil %s'), self::$groupPublics[$groupId], $profilValue['name']);
                         }
                     }
             }
         }
         // Liste alphabétique
-        self::$alphabet= range('A', 'Z');
+        self::$alphabet = range('A', 'Z');
+        $alphabet = range('A', 'Z');
+        self::$alphabet = array_combine($alphabet, self::$alphabet);
+        self::$alphabet = array_merge(['all'=>'Toute'], self::$alphabet );
         // Liste des inscrits dans le cours sélectionné.
         $courseId = $this->getUrl(2);
         $users = $this->getData(['enrolment', $courseId]);
@@ -408,6 +411,25 @@ class course extends common
             $history = $userValue['history'];
             $maxTime = max($history);
             $pageId = array_search($maxTime, $history);
+            // Filtres
+            if ($this->isPost()) {
+                // Groupe et profils
+                $group = (string) $this->getData(['user', $userId, 'group']);
+                $profil = (string) $this->getData(['user', $userId, 'profil']);
+                $firstName = $this->getData(['user', $userId, 'firstname']);
+                $lastName = $this->getData(['user', $userId, 'lastname']);
+                if ( $this->getInput('courseFilterGroup', helper::FILTER_INT) > 0
+                    && $this->getInput('courseFilterGroup', helper::FILTER_STRING_SHORT) !== $group . $profil  )
+                    continue;
+                // Première lettre du prénom
+                if ($this->getInput('courseFilterFirstName', helper::FILTER_STRING_SHORT) !== 'all'
+                    && $this->getInput('courseFilterFirstName', helper::FILTER_STRING_SHORT) !== strtoupper(substr($firstName, 0, 1)))
+                    continue;
+                // Première lettre du nom
+                if ($this->getInput('courseFilterLastName', helper::FILTER_STRING_SHORT)  !== 'all'
+                    && $this->getInput('courseFilterLastName', helper::FILTER_STRING_SHORT) !== strtoupper(substr($lastName, 0, 1)))
+                    continue;
+            }
             self::$courseUsers[] = [
                 $userId,
                 $this->getData(['user', $userId, 'firstname']) . ' ' . $this->getData(['user', $userId, 'lastname']),
@@ -422,6 +444,7 @@ class course extends common
             ];
         }
 
+
         // Valeurs en sortie
         $this->addOutput([
             'title' => sprintf(helper::translate('Inscrits dans le cours %s'), $this->getData(['course', $courseId, 'title'])),
diff --git a/core/module/course/view/user/user.php b/core/module/course/view/user/user.php
index 5da09ca..af7fa28 100644
--- a/core/module/course/view/user/user.php
+++ b/core/module/course/view/user/user.php
@@ -11,7 +11,8 @@
             'class' => 'userDeleteAll buttonRed',
             'href' => helper::baseUrl() . 'course/userDeleteAll/' . $this->getUrl(2),
             'value' => helper::translate('Réinitialiser'),
-            'help' => 'Désinscrire tous les utilisateurs'
+            'help' => 'Désinscrire tous les utilisateurs',
+            'ico'=> 'minus'
         ])
             ?>
     </div>
@@ -27,23 +28,24 @@
                 <div class="col2">
                     <?php echo template::select('courseFilterGroup', $module::$groups, [
                         'label' => 'Groupes / Profils',
-                        'selected' => isset($_POST['courseFilterGroup']) ? $_POST['courseFilterGroup'] : self::GROUP_VISITOR,
+                        'selected' => isset($_POST['courseFilterGroup']) ? $_POST['courseFilterGroup'] : 'all',
                     ]); ?>
                 </div>
                 <div class="col2">
                     <?php echo template::select('courseFilterFirstName', $module::$alphabet, [
                         'label' => 'Prénom commence par',
-                        'selected' => isset($_POST['courseFilterFirstName']) ? $_POST['courseFilterFirstName'] : 'A',
+                        'selected' => isset($_POST['courseFilterFirstName']) ? $_POST['courseFilterFirstName'] : 'all',
                     ]); ?>
                 </div>
                 <div class="col2">
                     <?php echo template::select('courseFilterLastName', $module::$alphabet, [
                         'label' => 'Nom commence par',
-                        'selected' => isset($_POST['courseFilterLastName']) ? $_POST['courseFilterLastName'] : 'A',
+                        'selected' => isset($_POST['courseFilterLastName']) ? $_POST['courseFilterLastName'] : 'all',
                     ]); ?>
                 </div>
                 <div class="col2 offset4">
                     <?php echo template::submit('courseFilterSubmit', [
+                        'value' => 'Filtrer',
                         'uniqueSubmission' => true
                     ]); ?>
                 </div>