When collecting registrations for your event, you can also add-on pricing for various add-on items that you're selling. For example...
In this article, we will walk you through using our custom questions feature for selling T-Shirts:
1. Go to Setup > Form Builder
2. Add the custom question block to the form
3. Select 'Quantity' type
4. Configure the settings of your custom question and add available add-on items/options
OR watch the video below...