Index: /views/order/index.phtml
===================================================================
--- /views/order/index.phtml	(revision 8418)
+++ /views/order/index.phtml	(revision 8419)
@@ -55,4 +55,6 @@
 						<input id="wpsg_ascdesc" type="hidden" name="filter[ascdesc]" value="<?php echo @$this->view['arFilter']['ascdesc']; ?>" />
 
+						<input type="hidden" name="filter[voucher_id]" value="<?php echo intval($this->view['arFilter']['voucher_id']??0); ?>" />
+						
 						<?php echo wpsg_drawForm_Input('filter[s]', __('Suchfeld', 'wpsg'), wpsg_getStr($this->view['arFilter']['s'])); ?>
                         <?php echo wpsg_drawForm_Input('filter[k_id]', __('Kunde (ID)', 'wpsg'), wpsg_getStr($this->view['arFilter']['k_id'])); ?>