diff --git a/modules/backend/formwidgets/Repeater.php b/modules/backend/formwidgets/Repeater.php
index 80e744670..0919e6368 100644
--- a/modules/backend/formwidgets/Repeater.php
+++ b/modules/backend/formwidgets/Repeater.php
@@ -175,8 +175,8 @@ class Repeater extends FormWidgetBase
 
         $loadValue = $this->getLoadValue();
         if (is_array($loadValue)) {
-            foreach ($loadValue as $loadedValue) {
-                $loadedIndexes[] = array_get($loadedValue, '_index');
+            foreach ($loadValue as $index => $loadedValue) {
+                $loadedIndexes[] = array_get($loadedValue, '_index', $index);
                 $loadedGroups[] = array_get($loadedValue, '_group');
             }
         }
@@ -338,4 +338,14 @@ class Repeater extends FormWidgetBase
     {
         return array_get($this->indexMeta, $index.'.groupCode');
     }
+
+    /**
+     * Returns the group title from its unique code.
+     * @param $groupCode string
+     * @return string
+     */
+    public function getGroupTitle($groupCode)
+    {
+        return array_get($this->groupDefinitions, $groupCode.'.name');
+    }
 }
diff --git a/modules/backend/formwidgets/repeater/assets/js/repeater.js b/modules/backend/formwidgets/repeater/assets/js/repeater.js
index 00969db83..d1fda348e 100644
--- a/modules/backend/formwidgets/repeater/assets/js/repeater.js
+++ b/modules/backend/formwidgets/repeater/assets/js/repeater.js
@@ -173,7 +173,12 @@
 
     Repeater.prototype.getCollapseTitle = function($item) {
         var $target,
-            defaultText = ''
+            defaultText = '',
+            explicitText = $item.data('collapse-title')
+
+        if (explicitText) {
+            return explicitText
+        }
 
         if (this.options.titleFrom) {
             $target = $('[data-field-name="'+this.options.titleFrom+'"]')
diff --git a/modules/backend/formwidgets/repeater/partials/_repeater_item.htm b/modules/backend/formwidgets/repeater/partials/_repeater_item.htm
index 3a867f375..843fd24ef 100644
--- a/modules/backend/formwidgets/repeater/partials/_repeater_item.htm
+++ b/modules/backend/formwidgets/repeater/partials/_repeater_item.htm
@@ -1,7 +1,10 @@
 <?php
     $groupCode = $useGroups ? $this->getGroupCodeFromIndex($indexValue) : '';
+    $itemTitle = $useGroups ? $this->getGroupTitle($groupCode) : null;
 ?>
-<li class="field-repeater-item">
+<li
+    <?= $itemTitle ? 'data-collapse-title="'.$itemTitle.'"' : '' ?>
+    class="field-repeater-item">
 
     <div class="repeater-item-handle <?= $this->getId('items') ?>-handle">
         <i class="icon-bars"></i>