where is the client user option?

where is the client user option?

The system has changed so much from when I first signed up (for the better).  But one thing I cannot find anymore is the option to create a client user.  It used to be in the options when adding any user.  Now its not, and when I go to look at user rolls it shows it on the list, but prompts me to sign up for another account? 

I don't use the employee account, can I just change that user title to client and adjust the rolls?