Guest Groups & Plus-Ones

The Guest Group feature allows you to link guests and their plus-ones to help you manage them together. This feature indents the secondary guest(s) under the main guest to visually distinguish their hierarchy. Groups can be used throughout the product, including on guest lists, check-in, and seating modules.

For more details, please see:

https://help.d.io/en/articles/5115636-guest-groups-and-plus-ones-overview