You can add a single person, a single person with a plus one, a couple, or a family to your guest list.
When you choose "+ Add Guests" in the right-hand corner of your Guest List, you can choose the guest type you are adding. From there, you can add more children, add a plus one, or remove any guests in the group by clicking on the "X."
Traditional invitation etiquette suggests that each guest over the age of 18 should receive their own invitation, though it's becoming increasingly common for families to live together into adulthood. At the moment, each family entry can only have two adults listed - you can definitely still include other members of that family (even if they are adults), they should just be included as "children." Don't worry, your guests listed as "children" will not be notified that they are listed as such.
Still have questions? Feel free to send us an email or give us a call at 1 (408) 657-ZOLA (9652) from 10 am EST - 6 pm EST.