Bookem supports multiple team members and extracting reports on their billing is as easy as selecting "Accounts - Invoices" - click on the "export" button, set your date range and "download"
Select your date range and "download"
This will export to an Excel table, which allows you to view and filter the following information:
Associated team member/ resource - this is based on their bookings
Payments made during the period selected
Invoice payment status