The first thing you should do is, in the menu on the left, go to the "Employees" section.

Once you are in the list of employees, you must click on the button next to the search engine, which has a "+" symbol. If you put your cursor over this button you will see that the button says "Create new employee"

When you press this button, the new employee form will open, which you must fill out with the employee's data. It is important that you check that the employee has a center assigned to him, consulting the "Assignment to Centers" section.

When you have all the data, you just have to click on the button at the top of the tab that is shaped like a "check" to apply the changes.

Go back to the employee list and you will see that the new employee you just created already appears in the list.