How do I create a form where you can pay for a donation...or not

Hello I recently created an online form for ticket donations to our Jewish high holiday services. We want to give people the option to REGISTER (so that we have their info in a spreadsheet) and donate either at the door or online using paypal. But it looks like if we put on the paypal widget and use the calculator to add up their donations, that people must use the paypal button in order to submit the form. 

How do we make a form that will SUBMIT whether they donate or not?

Thanks a million!

Jessica

There are 2 ways I can think of that obviously stand out at the moment to do something like that.

One - You could make your form into a Multi-Payment Form which would offer 2 different choices to pick from based on conditional logic which would then allow people to donate online via paypal on the form or optionally register so you know they are coming but they would donate at the door instead.

or

Two - You could create a form and just use the Purchase Order Tool. Though a drawback with this method is that it doesn't really collect donations online, but it does allow them to submit regardless.

Something else you might find extremely useful in the mix of this is our Ticketing Widget.