Gadget export

To export the sandbox 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:

* sandbox[ResourceLoader|type=general|dependencies=ext.gadget.rsw-util,oojs-ui-core|targets=desktop,mobile]|sandbox.js

You must have appropriate permissions on destination wiki (including the right to edit system messages) and import from file uploads must be enabled.