Gadget export
From Test Wiki
To export the RedWarn gadget, click on "Download" 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:
*RedWarn[ResourceLoader|dependencies=ext.gadget.morebits, ext.gadget.select2, mediawiki.api, mediawiki.language|rights=rollback]|RedWarn.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.
