Gadget export
To export the massDesc gadget, click on "ښکته کول" button, save the downloaded file, go to Special:Import on the destination wiki and upload it. Then add the following to MediaWiki:Gadgets-definition page:
* massDesc [ResourceLoader |dependencies=mediawiki.util |rights=review |namespaces=14] |massDesc.js
You must have appropriate permissions on the destination wiki (including the right to edit system messages) and import from file uploads must be enabled.