Seats and Sweets online booking with an infant

[junebug]

I am hoping someone here has had experience with booking the seats and sweets online when their party included an infant. I need to be able to book online to increase my chances of securing a reservation at midnight, however when booking this event online it only gives the choice for number of guests 10+ or number of guests 3-9. Do I not need to include infants in the party for this event? And has anyone done this and had a problem when showing up to check in with an infant who is not listed on the reservation? I have called Disney multiple times and gotten multiple answers. Thanks!