Add previewMode settings to code2

www/common/sframe-protocol.js

@@ -84,4 +84,8 @@ define({
 
     // Send the new settings to the inner iframe when they are changed in the proxy
     'EV_SETTINGS_UPDATE': true,
+
+    // Get and set pad attributes stored in the drive from the inner iframe
+    'Q_GET_PAD_ATTRIBUTE': true,
+    'Q_SET_PAD_ATTRIBUTE': true,
 });