How do I make an Employee an Admin or remove an Employee's Admin capabilities?

Turn the toggle on the Edit Employee or New Employee screen.

While creating or editing an Employee, there is a toggle for "Admin." By default, it will be OFF (to turn on, simply toggle it to the right -- it will turn blue instead of gray). Remember to click "Save" at the bottom, and the Employee will now have Admin capabilities.

selecting-an-employee admin-employee

For more help, consider reading User Roles & Permissions or Add or Edit an Employee.