Ability to Add Analytics Code - Important

Please make a way for us to insert our analytics tracking codes for facebook and google. This is especially needed on checkout pages like event tickets page, tickets, check out and tickets thank you page. There is currently no way to track who is hitting the page and converting. I would consider this to be time sensitive and a key feature. Also, useful for tracking people that hit registration page and sign up. Pretty much anywhere an action is taken. Thank you!