'Sign up' ID instead of Email is possible?

[universe1]

Hi, Bubblers.
Is it possible to ‘Sign up an user’ with only ID and PW (instead of using Email)?
I want my users to use only ID and PW not Email at all.
If it is doable, how can I make it happen?

Thank you for reading!

[melon]

Can i use Username as text field instead of email

Can i use Username as text field with compulsory email field in Signup form. I want to Signup a user with different username with might be similar email ids. I want to assign some permission based on username. Username will generated via create account for others which will ensure no duplicates. Please Help

[universe1]

Thank you! Melon~
I appreciate for your help!