Changing slugs on plugins like Global Site Tags

Hi,

I'd love to change the slugs on a few plugins I've installed, like Global Site Tags.

var $global_site_tags_base = 'tags'; //domain.tld/BASE/ Ex: domain.tld/tags/

I changed tags in the above code to the slug I want, but it still only works at the url "/tags". Is it pulling this from somewhere I'm missing?

Thanks!