The only thing I see that could be added is the possibility to lunch the popup from a third party button.
Maybe it’s already possible but I have not figured out.
Definately doable. If you can’t add the popmake-# class to your button, you can either wrap the button in a span with the proper class or use Custom Selectors under Click Open settings to target any elements on your site via CSS Selectors, #sidebar button.blue for instance.