Mass Invoice Download
It would be great if you could check off the invoices from the customer area, and download them all at once.
When my clients have to file their taxes, they have to enter each invoice, and download it. This, if there are few products, is simple, but when a customer has many invoices, it is very cumbersome.
Ideally, the client should be able to select all the invoices from their client area and download them at once with a button.
Consider this, it is a simple but very effective functionality.