How can I bypass my form?

I have created a form that is integrated with PayPal.  However, I've been approached with a request to allow people to send in multiple registrations by mail.  Is there a way for me to enter submissions without going through the form?

Unfortunately that is not possible. I might suggest you to export your data on excel file, and then you can add extra rows on that excel file. Please follow the instructions from the link below on how to do that:

https://www.jotform.com/help/44-How-to-Export-Form-Data-to-Excel

Please let us know if you have any other question.