Hi, thank you for this great plugin! Your work is very appreciated.
I'm planning on using it for an event we are offering free admittance for, my skills have stopped short of being able to authenticate the user by 'last name' and 'passcode' only. Do you think someone could point me in the right direction?
I'm digging around in the rsvp_frontend.inc.php but just a little concerned about breaking the functionality!