The farm overview section is a grid that shows relevant data about each account with a non-zero balance for that farm.
In the main grid view the current balance, unposted debits, and unposted credits are shown for each account that has a non-zero current balance. You will also see a plus sign to the left of the enterprise on each row; when you click the plus button you will see the monthly and overall budget information for the farm.
You can change the farm by using the drop down selector at the top of the screen.