Allow selection of multiple product options

Hello. I have created the following event registration form;

https://www.jotform.com/build/91327407278158

In the product selection / payment integration section, my intention is for registrants to have the ability to select multiple items and add them together. For example, there are team registrations and additional shirts that could be ordered. I'd like them to be able to select a team registration type and, if necessary, order 1 or more additional shirts in varying sizes. However, it seems that they can only select one item in this list. I'm uncertain what I've done wrong or how to correct this. It may be that I need to insert a different field type into the form. Please advise on a proper way to update the form. Thank you.

Regards,

Chris

You need to enable the Users can select multiple products option. To do that, go to the Payment settings and click the Additional Gateway settings. After that, enable the Users can select multiple products option and then click the Save button.

I hope this information helps.