Hi Richard,
If you want to quickly view when your invoices have been paid you can do this in the bank area by viewing all transactions and sorting by payments coming in and invoice number.
Unfortunately we cannot currently add any more columns to the invoices screen without affecting the layout of the app and in particular its mobile settings.
Guest
You need to re-think who you can display both date paid and instead of just saying paid/overpaid/underpaid we need the amount. It takes so long clicking into each item to check the amount.