diff --git a/application/Preorder/PreorderController.php b/application/Preorder/PreorderController.php
index 4339e2078..69f356bc4 100644
--- a/application/Preorder/PreorderController.php
+++ b/application/Preorder/PreorderController.php
@@ -1063,6 +1063,27 @@ class PreorderController extends mfBaseController {
             return false;
         }
 
+        if ($flag_id == 1) {
+            $preorder = new Preorder($preorder_id);
+            if(!$preorder->id) {
+                return false;
+            }
+
+            $attribute = "inhouse_cabling_supplied";
+            $attribs = $preorder->attribute;
+            if(!$attribs) {
+                $attribs = [];
+            }
+
+            $attribs[$attribute] = $value ? 1 : 0;
+            $preorder->attributes = json_encode($attribs);
+            if($preorder->save()) {
+                return ["id" => $preorder_id, "attribute" => $attribute, "update" => date("d.m.Y H:i", $preorder->edit)];
+            } else {
+                $this->returnJson(["status" => "error", "result" => ["id" => $preorder_id, "attribute" => $attribute]]);
+            }
+        }
+
         $flagvalue = PreorderStatusflagValueModel::getFirst(["preorder_id" => $preorder_id, "flag_id" => $flag_id]);
         if(!$flagvalue) {
             $flagvalue = PreorderStatusflagValueModel::create([
diff --git a/lib/Helper/Helper.php b/lib/Helper/Helper.php
index a3ea44ea5..3668e1b8d 100644
--- a/lib/Helper/Helper.php
+++ b/lib/Helper/Helper.php
@@ -25,6 +25,8 @@ class Helper {
             $sql .= " AND `$columnName` = " . $filterValue;
         } else if ($filterValue === null) {
             $sql .= " AND `$columnName` IS NULL";
+        } else if ($filterValue === '!NULL') {
+            $sql .= " AND `$columnName` IS NOT NULL";
         } else if (!empty($filterValue)) {
             if ($exactMatch) {
                 $sql .= " AND `$columnName` = '" . $filterValue . "'";
@@ -32,6 +34,8 @@ class Helper {
                 $sql .= " AND `$columnName` LIKE '" . $filterValue . "'";
             } else if ($filterValue[strlen($filterValue) - 1] === "%") {
                 $sql .= " AND `$columnName` LIKE '" . $filterValue . "'";
+            } else if ($filterValue[0] === "!") {
+                $sql .= " AND `$columnName` NOT LIKE '%" . substr($filterValue, 1) . "%'";
             } else {
                 $filterItems = explode(" ", $filterValue);
                 foreach ($filterItems as $item) {