Board Thread:Support Requests - Getting Technical/@comment-24553580-20190909050432/@comment-168424-20190909180921

Yes, but the JS will still need to get reviewed, if it imports into the main wiki-wide JS page. ImportJS scripts are basically already separated out.

See Help:JavaScript review process for more info on the JS part. See Help:Including_additional_CSS_and_JS for how to import CSS from separate pages.