How Do I Add A Party Member, Such As, A Plus One Or A Child, To A Guest?

1. In 'Events', click the Event you want to manage:

2. Now click 'Guest List': 

3. Under 'Guest Lists', click on the Guest List your Guest is in: 

4. Click the three dots to the right of your Guest's name and select 'Add party member': 

5. Fill in the details of the party member and click 'save' to add the party member or 'Save and invite' to send an email invite to the party member:

6. The party member should appear under the Guest whose party they are in: