submit further information to a form after submission

I'm not quite sure that I understand what you want to do here.

Do you maybe mean that you want to send information from one form to another to gather additional information or something along those lines?

If that's what you're referring to we have a guide you can follow here:

https://www.jotform.com/help/351-How-to-Automatically-Pass-Form-Data-to-Another-Form