diff --git a/src/includes/class/class.LSform.php b/src/includes/class/class.LSform.php
index 5e96e0b8..48af467c 100644
--- a/src/includes/class/class.LSform.php
+++ b/src/includes/class/class.LSform.php
@@ -498,11 +498,13 @@ class LSform extends LSlog_staticLoggerClass {
       }
     }
     else {
-      $elementsList = $this -> dataEntryFormConfig['displayedElements'];
-      if (isset($this -> dataEntryFormConfig['defaultValues']) && is_array($this -> dataEntryFormConfig['defaultValues'])) {
-        $this -> setPostData($this -> dataEntryFormConfig['defaultValues']);
-        $elementsList = array_merge($elementsList,array_keys($this -> dataEntryFormConfig['defaultValues']));
-      }
+      $defaultValues = LSconfig::get(
+        'defaultValues', array(), 'array', $this -> dataEntryFormConfig
+      );
+      $elementsList = array_merge(
+        $this -> dataEntryFormConfig['displayedElements'],
+        array_keys($this -> dataEntryFormConfig['defaultValues'])
+      );
 
       foreach($elementsList as $elementName) {
         if (!isset($this -> elements[$elementName])) {
@@ -510,9 +512,21 @@ class LSform extends LSlog_staticLoggerClass {
           continue;
         }
         $element = $this -> elements[$elementName];
-        if ((isset($this -> dataEntryFormConfig['requiredAllAttributes']) && $this -> dataEntryFormConfig['requiredAllAttributes']) || isset($this -> dataEntryFormConfig['requiredAttributes']) && is_array($this -> dataEntryFormConfig['requiredAttributes']) && in_array($elementName,$this -> dataEntryFormConfig['requiredAttributes'])) {
-            $element -> setRequired();
+        // Set required from dataEntryForm config
+        if (
+          LSconfig :: get('requiredAllAttributes', false, 'bool', $this -> dataEntryFormConfig) ||
+          in_array(
+            $elementName,
+            LSconfig :: get('requiredAttributes', array(), 'array', $this -> dataEntryFormConfig)
+          )
+        ){
+          $element -> setRequired();
         }
+        // Set default value if not present in POST data
+        if (!isset($_POST[$elementName]) && isset($defaultValues[$elementName])) {
+          $_POST[$elementName] = ensureIsArray($defaultValues[$elementName]);
+        }
+        // Retrieve POST data of the element
         if( !($element -> getPostData($this -> _postData, $onlyIfPresent)) ) {
           LSerror :: addErrorCode('LSform_02',$element_name);
           return;