Please add internal notes tags to invoices that should look similar to the tags created after writing notes on received payments. As in this case, the invoice tags should show when you scroll up or down the list (LIST) of invoices. This is so handy so you don't have to open each invoice individually (ONE BY ONE, waste of time) looking for notes or internal reminders. For example: not paid yet, waiting for payment, owe $10.00, 10 units on back order, etc.