CoursePress Pro - Sign up for users

Hi,
How are you?
I am writing you because I am working on a e-learning platform with your program and I would like to know about the Sign up page for users.
Do we have to install a plugin?
I have the log in for users, but I do not see any place where they can register in the first instance.
Could you please give me some orientation?

Thanks in advance,

Virginia Sanz Sanchez