Having 2 payments in 1 form

Hello,

I discovered that you can not put two different payment modules in the same form, but there is a way to enter a list of items to be selected with the total customer of the calculation, without requiring payment?

Thank you

You can actually have 2 payment methods in 1 form. However, you need to create 2 more forms separately. You will use the Iframe embed widget to insert 2 payment forms in the main form. Here's a helpful guide: How-to-Create-a-Basic-Multiple-Payment-form

Is there a way to enter a list of items to be selected with the total customer of the calculation, without requiring payment?

You might want to check one of these widgets: 
Inventory widget
Gift Registry widget
Quantity Gift Registry widget

If you have any questions, let us know. Thank you.