How to get URL parameter to show up for a specific Custom Post Type

How can I use this plugin on a custom post type URL? I have no idea where to put the shortcode?????? I’d like to be able to have it automatically update the posts URL so that my Forminator select drop down recognizes it. I can’t get the URL parameter to show up in the URL because I have no idea how to use it. Can you do a quick video tutorial or something??????? Pretty please? Specifically how it relates to showing URL parameter on specific custom post type not the entire site.