The purpose of this script is to allow the editing of the References section produced by the <references/> or {{reflist}} tags, without having to hunt through the whole article to find the appropriate <ref></ref> tags.
Warning: this script will not work as expected if you are using wikEd (changes to references are lost on clicking Apply changes and preview). As a workaround, toggle to classic text view, use edit refs, then toggle back to wikEd text view.