Help With Location Rules for Custom pages

Hiya,

Using Generatepress's Elements -> Layout feature, is it possible to change the layout of a particular URL that is not actually a wordpress Page, post, or archive?

There are various tools on the site that are coded in PHP. These tools currently have the "default" site-wide content/sidebar. I want to add a custom sidebar to these pages, but I am not sure how I would do this in "location rules" since they are not strictly wordpress pages (and are hence not showing up).