Work

I installed the plugin, that process was fine but when attempting to add to a page or have it load, run when I’d like it there is nothing showing, or suggesting how to do so. Is there a shortcode to paste somewhere or once installed a option in Settings to add to page or post?
Any help getting this working would be appreciated. Finally I wold like it to show a popup I have created already, one that offers subscription to mailing list etc, is this possible? This wold show a sign up in my contact section of menu, where the popup would show once page is clicked, opened? Await your reply, thanks.

https://www.ads-software.com/plugins/alligator-menu-popup/