Staring with version 6.1 All Orders will synchronize the employee and other names lists from QuickBooks. You can also create and modify employees and other names within All Orders and they will automatically be updated in QuickBooks.
The Employee / Other Names list works the same way as all other profile lists.
Costing item is used when adding time to work orders. You can set a time based service item which All Orders will use for costing the time spent by a particular employee.