It will be good if we can add invoice status, and the status displayed also on invoice list page. Status : Due, Overdue, Paid
Invoices do not link back to projects. Would be ideal if there was a tag to individual projects within the invoice app, and then automatically add a note to that project linking back to the invoice raised.
Also, is there a way to add hierarchy so that I can bill for the total time to complete a whole task and not each individual activity that contributed to the task, as appears to be currently. Hope this makes sense.