In {{copyvio-revdel}} transclusions, there's a link called "the history with auto-selected revisions". After you install this script, clicking that link will take you to the article's history, but with the checkboxes for the ranges in the template already clicked.
Hint: It's much easier if you get ScriptInstaller, then navigate to User:Enterprisey/url-select-revdel.js and click "Install" at the top.
However, here's the manual method:
{{subst:iusc|User:Enterprisey/url-select-revdel.js}}
on Special:MyPage/common.js or a skin-specific page, like Special:MyPage/vector.js.