Question: How do I add additional managers to my account? Can I assign employees to managers?
Any of your employees can be made managers. Login as an admin and then visit the "Employees" tab and click on "View" next to the employee name you are looking to upgrade. You will then click the edit button. When editing the employee profile screen has a checkbox for Manager.
After selecting that box and saving, you will have the option to assign employees to that manager. The manager can have view or approval permission for the employees selected.