I hate to say but it is not clear from your question what you mean or what you are trying to do. It is my best guess that you are trying to create a new e-mail address and have a different password for it. But I'm not a mind reader. If I am right here are the helpfiles you need so you can do this.
Superuser 2017/18 Use Kudos to say thanks Mark answer as "helpful" only when the problem is solved Please don't send me private messages unless I ask you to. I do not work for VM. The advice I give is based on my best understanding of VM policy and practice. You rely on it at your own risk.