Is it possible to create a saved search of bill-expenses (non-mainline) that would show up as a sub-list view on the bill payments? Ideal view would be something like this:

Bill Payment:
|Bill_1|Expense-A|Location5|Amount|
|Bill_1|Expense-B|Location7|Amount|
|Bill_2|Expense-A|Location2|Amount|
|Bill_3|Expense-A|Location5|Amount|
|Bill_3|Expense-B|Location6|Amount|
|Bill_3|Expense-C|Location3|Amount|