[Plugin: Visual Form Builder] Manually edit code generated by [vfb id=1]

Hi Matthew once again,

Entering the [vfb id=1] short code in a page of my site works just fine.

The question is:
Where is the actual code of the form kept? Creating/Saving a form most probably triggers the visual-form-builder.php in order to create and save the form’s code somewhere on the server? Where is this file and with what name so that I can edit it manually?

Is this the way that WordPress Short Codes work or is the corresponding code getting generated live and on demand upon page request?

Your comments would be much appreciated!

https://www.ads-software.com/extend/plugins/visual-form-builder/