Whether you're you're editing an existing employee(s) or adding a new one, it's always a good idea to start from the Employees list. To access the list of Employees:
From the menu, select Payroll Administration > Payroll Records > Employees
Make sure you've got PR-Payroll Basics Review selected in the View dropdown
Use this view to get an indication of setup. Gaps or blanks indicate incomplete record or fields.
From here you can add a new employee, or open each employee in their own browser tab. This helps to ensure that you're always in the right context and don't end up being re-directed to a page that you didn't want.
To Add a New Employee
Click on New Employee
To Open an Existing Employee
Right-click on View of the Employee, and select Open Link in New Tab
Once the Employee record loads in a new tab, click Edit