Just want to clarify 2 questions:
1. Can the username field be validated if already existing even before submitting the form? I have 3 tabs in my form with 'Account Credentials' being the first. Users will enter their desired username in this tab. What I want is to check if his entered username is already taken. He can only proceed to the 'Next' tab if the username is available Is this possible?.
2. Why can't the middlename (secondname) be enabled?
Thanks for the assistance.