Hi @djasnowski,
Thanks for reaching out to the Auth0 Community!
I understand that you would like to know how to configure additional sign up fields when using the New Universal Login Page.
Unfortunately, this is not possible with the New Universal Login Page, and you must use the Classic Universal Login Page to configure additional sign up fields.
This is addressed in the How to configure additional signup fields on the Universal Login Page FAQ.
Please let me know if you have any further questions, I would be glad to help.
Thank you.