I have Pro and the Payments plugin
My end goal is to have someone select an item from a drop down, then type a number and then the math will show up in a separate box. That way when the form is submitted I know how much to invoice someone for later instead of charging them before the form is submitted.
A solution could be if there is a way to setup a form with the payments that it won't charge someone when there is a total? And they can type how many they want.
This plugin is amazing and I recommend it to everyone I can.