Currently no way to easily see a list or report of all invoices generated, paid, etc.
Robin M. Katz commented
More details from our accounting colleagues, who request this for help reconciling PayPal credit card payments with Aeon-generated invoices:
Summary Reports of Total Invoices by criteria
Ideally, we would like to match PayPal Total Gross Amount to Aeon Total Invoices by Payer or Date