I would like to be able to add an Invoice to a specific account rather than Contact. Often it is the business that is liable for the payment, not the individual.

Furthermore, I would like to see all of their associated Invoices from within an Invoices tab of the Account and be able to filter them specifically by paid/due and overdue and easily see a total value of the invoices as well as the total amounts paid.

This is particularly useful as one account can have several bookings, and owe us different amounts across those bookings. This would help us keep track of it.