Change user name

Change user name

I have two users on my account that have the same last name. Is there a way to get their first and last name to show up as their user name instead of just their last name and a number?

Also, our company paid for three recruiters when signing up.  Is this what allows up to have 3 users on one account or was it even necessary for me to pay for 3 users if they can all be included on one recruiter account?  Thanks, Zac.