Project Global Report to include invoices listed against each project

I would like the Project Global Report to be amended to include all the invoices listed per project. I know it is available by manually going through each project but this is time consuming. The actual Project Global Report already 'reads' the invoice information as it includes a 'total income' for each project. The user should have the ability to run a report which includes a list of the invoices which makes up the 'total income'.