Hello,
Other minifying plugins, for example WP Fastest Cache – offer an option to add a filter that searches for strings in the JS or CSS and exclude. This works whether or not the CSS or JS was added properly in WordPress or not. Could you include this in future updates? Right now a number of sites I’d prefer to use SG optimizer, but I have to use WP Fastest Cache instead because I can’t exclude CSS / JS, and WPFC doesn’t play well with your server’s cache settings so it’s a big headache.