Not yet. Once a player has joined an event, in order to add another guest, they must cancel their ticket and then re-join the event in order to add their guest.
A player can add a guest to an event when they are RSVPing for the event. From the event page (app or web), they click “Join”. This opens up a window that allows them to select if they want to “Add a Guest”. The player can add the Guest’s email address or phone number (Note: The guest will get an email of the ticket order if their email address is added). Players can add as many guests as the organizer allows.
Here’s a sample email that a guest will receive if a player gets them a ticket for an event.
In order to Cancel your guest’s RSVP, you must also cancel your RSVP, as the two tickets are bucketed together.