Add back the ability to use native MKB feature on unofficial titles

scripts/custom-flags.user.js

@@ -0,0 +1,39 @@
+// ==UserScript==
+// @name         Better xCloud - Custom flags
+// @namespace    https://github.com/redphx
+// @version      1.0.0
+// @description  Customize Better xCloud script
+// @author       redphx
+// @license      MIT
+// @match        https://www.xbox.com/*/play*
+// @run-at       document-start
+// @grant        none
+// ==/UserScript==
+'use strict';
+
+/*
+Make sure this script is being loaded before the Better xCloud script.
+
+How to:
+1. Uninstall Better xCloud script.
+2. Install this script.
+3. Reinstall Better xCloud script. All your settings are still there.
+*/
+
+// Change this to `false` if you want to temporary disable the script
+const enabled = true;
+
+enabled && (window.BX_FLAGS = {
+    /*
+        Add titleId of the game(s) you want to add here
+        For example:
+            - Flight Simulator has this link: /play/games/microsoft-flight-simulator-standard-40th-anniversa/9PMQDM08SNK9
+            - That means its titleId is "9PMQDM08SNK9"
+            - So it becomes:
+                ForceNativeMkbTitles: [
+                    "9PMQDM08SNK9",
+                ],
+    */
+    ForceNativeMkbTitles: [
+    ],
+});