We have just recently released UWB Full 7.61, for an upgrade to the built-in Forms Builder app and the Members app. With this update, you can now add your own coding to run after a user submits a form successfully. It is what we are using in our Demo: Get Login User/Pass form:
From your website admin panel, on the Add Form / Edit Form pages, you can customize the code to run if you would like. Here, we use it for the system to generate a unique username/password for access to the demos.
We hope you like it, and welcome your feedback!