@Pavana
Thank you for your post!
As of right now, the documentation you referenced has all the methods we support when it comes to customizing the UI experience for users. It doesn't seem like using native UI screens as custom user flows is a feature we currently support, however, I'll reach out to my team to confirm.
If you have any other questions in the meantime, please let me know.
Thank you again for your time and patience throughout this issue.