No, this is something I made for myself.
The Cat Signal, by the Internet Defense League, automatically triggers whatever current issue is running. It's there for people who just want to run this all the time.
Because that would cause you to load scripts multiple times. If you pick Cat Signal, it de-selects everything else and only lets you use that.
Sometimes their servers get overloaded. When that happens, pick the specific event you're targeting instead of the Cat Signal to force it.
Some, yes.
WP_DEBUG
on your site to show the modal to everyone#ALWAYS_SHOW_BFTN_WIDGET
to the end of your URL to see the modalI plan to.
Probably not. If you have a ton of javascript, it may have issues.
I can't help people debug why the javascript isn't working properly. If you view your page source and the code is there, then my job is done and you'll need to talk directly to Fight for the Future. Go to the linked page for the fight. They have 'more information' links on those pages and you can file an issue. Sorry, but I have to spend my time fighting with my congresscritter. He's really annoying.