To create a new employee, refer to Adding A New Employee
Menu > Employee > Employee Management > Employee List
Moving an employee to a different group
Locate an employee you want to move.
Go to the employee group that you want the employee to be in and press ADD USER
When ADD USER selection prompts, find and select the employee you want to move.
Result
The employee will now belong to the new group you selected.
Hint: You may have an employee not listed on any group. This is fine, as long as you can find them on the "ADD USER" section