Gadget export
From wikibase-docker
To export the moveClaim gadget, click on "Download" button, save the downloaded file, go to Special:Import on destination wiki and upload it. Then add the following to MediaWiki:Gadgets-definition page:
* moveClaim[ResourceLoader|default|dependencies=jquery.spinner,jquery.ui,mediawiki.util,mediawiki.api,wikibase.api.RepoApi,wikibase.Site|rights=edit|type=general]|moveClaim.js|Move.css
You must have appropriate permissions on destination wiki (including the right to edit system messages) and import from file uploads must be enabled.