Index: /views/order/index.phtml
===================================================================
--- /views/order/index.phtml	(revision 7932)
+++ /views/order/index.phtml	(revision 7933)
@@ -5,5 +5,7 @@
 	 */
 
-	$arPaymentKeySelect = [];
+	$arPaymentKeySelect = [
+	    '' => __('Alle Zahlungsarten', 'wpsg')
+    ];
 	
 	foreach ($this->getPaymentArray() as $payment_key => $payment) {