Click on Company, then on the left in Links click on Departments. This brings up a list of numbers. You can use any of the numbers as you wish, just double click on the number and edit the name of that department, such as "France Trip 2013". I use departments to separate the costings for one of my client's overseas trips, so he can see how much that particular trip cost. When you enter each invoice or expense for that "department/trip" you need to enter the corresponding department number on the batch invoice. It helps with costing out various expenses. You could use it for different offices, or different departments within a company (such as warehouse, office, sales, etc etc).
You can also use it for budgeting etc. Hope that helps!
