Prior to version 8.7.2 of Atrium when you entered a BillTo location in the 'location' field of the Search tab on the Dashboard, you could find all of the locations where that location was the default BillTo.  That made it very difficult to find jobs where the actual BillTo location was not the default BillTo for the job location.  Starting with 8.7.2, there is now a separate field for searching for the BillTo:

Now you may enter values for both the Client Location and the Client BillTo when you want to search for unique combinations.