After you have created your event and you have created your registration page, you can decide what you want to ask on the registration page which the invitees need to fill in.
(Click on the following links to go to these separate articles for more details: “Event data & information", "Registration page" and "Registration page questions").
On multi-select questions you can set a limit of minimum and maximum amount of answers your guests can select.
How to create a choice limit
When creating or editing a registration page question:
Click on Edit Question (the pencil symbol).
A Choice limits toggle will appear below the question.
Set the Choice limits toggle on
Set your minimum and maximum choice limit