diff --git a/classes/studentstudyplanservice.php b/classes/studentstudyplanservice.php
index 9ad7359..aa27572 100644
--- a/classes/studentstudyplanservice.php
+++ b/classes/studentstudyplanservice.php
@@ -567,7 +567,7 @@ class studentstudyplanservice extends \external_api {
         foreach ($records as $r) {
             $studyplan = studyplan::find_by_id($r->studyplan_id);
             if (has_capability(self::CAP_COACH,$studyplan->context(),$USER)) {
-                $list[] = $studyplan->simple_model($userid);
+                $list[] = $studyplan->simple_model($userid,true);
             }
         }
         return $list;
diff --git a/classes/studyplan.php b/classes/studyplan.php
index 9f4b97a..2ffe2ba 100644
--- a/classes/studyplan.php
+++ b/classes/studyplan.php
@@ -277,7 +277,7 @@ class studyplan {
      * Webservice model for basic info
      * @return array Webservice data model
      */
-    public function simple_model($userid=null) {
+    public function simple_model($userid=null,$coachingoverview=false) {
         global $USER;
         $pages = [];
         foreach ($this->pages() as $p) {
@@ -300,9 +300,20 @@ class studyplan {
             'suspended' => boolval($this->r->suspended),
         ];
         if(isset($userid)) {
-            $model["userid"] = $userid;
-            $model["progress"] = $this->scanuserprogress($userid);
-            $model['amteaching'] = teachingfinder::is_teaching_studyplan($this,$userid);
+            if(!$coachingoverview) {
+                $model["userid"] = $userid;
+                $model["progress"] = $this->scanuserprogress($userid);
+                $model['amteaching'] = teachingfinder::is_teaching_studyplan($this,$userid);
+            } else {
+                $users = $this->find_linked_userids();
+                $sum = 0;
+                foreach ( $users as $uid ) {
+                    $sum += $this->scanuserprogress($uid);
+                } 
+
+                $model["progress"] = $sum / count($users);
+            }
+
         }
         return $model;
     }
diff --git a/lang/nl/local_treestudyplan.php b/lang/nl/local_treestudyplan.php
index 257a598..b59024b 100644
--- a/lang/nl/local_treestudyplan.php
+++ b/lang/nl/local_treestudyplan.php
@@ -311,7 +311,7 @@ $string["selectstudent_details"] = "Kies een student uit de lijst om zijn/haar v
 $string["showoverview"] = "Docentenweergave";
 $string["coacheditmode"] = "Bewerk inhoud";
 $string["open"] = "Openen";
-$string["noenddate"] = "∞";
+$string["noenddate"] = "∞";
 $string["back"] = "Terug";
 $string["send"] = "Verzenden";
 
@@ -329,7 +329,7 @@ $string["bistate_aggregator_desc"] = 'Doelen zijn behaald of niet (o.a. niet ges
 $string["core_aggregator_title"] = 'Moodle cursusvoltooiing';
 $string["core_aggregator_desc"] = 'Gebruik de ingesteld cursusvoltooiing';
 
-$string["competency_aggregator_title"] = 'Curuscompetenties';
+$string["competency_aggregator_title"] = 'Cursuscompetenties';
 $string["competency_aggregator_desc"] = 'Gebruik de bij de cursus ingestelde competenties';