Gadget export
From Halopedia, the Halo wiki
To export the MultiUpload 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:
* MultiUpload[ResourceLoader|dependencies=mediawiki.util|targets=desktop,mobile|rights=autoconfirmed]|MultiUpload.js
You must have appropriate permissions on destination wiki (including the right to edit system messages) and import from file uploads must be enabled.