Thank you for reaching out to us through the Community! It is certainly possible to add guests to the registration. If your event is in draft status, you can click on the settings tab in the top middle, and then click on the edit event button, and select the settings option. Under the "Can registrants bring other people?" heading you will be given the option to select yes or no. Select the yes option and the quantity of guests the registrant can bring. You also have the ability to collect information from them as well. For more information on this please look at this article by clicking here. Let me know if I can help in anything else!