diff --git a/lib/zin/wg/thinkmodel/v1.php b/lib/zin/wg/thinkmodel/v1.php
index e9691a6de3..d1cd173574 100644
--- a/lib/zin/wg/thinkmodel/v1.php
+++ b/lib/zin/wg/thinkmodel/v1.php
@@ -78,6 +78,15 @@ class thinkModel extends wg
         return true;
     }
 
+    protected function checkEmptyOfMulticolumn(object $data): bool
+    {
+        foreach($data as $key => $item)
+        {
+            if(!$this->existEmptyCol($item)) return false;
+        }
+        return true;
+    }
+
     protected function buildResultCard(array $steps, int $key, bool $isPosition = false): array
     {
         $questionList = array();