Having some sort of tick box to indicate the invoice has been sent would be a great feature. I might send the invoice via email but not via RS and it pains me that we don't have the ability to add the envelope to indicate the invoice has been sent!!
We will be adding a custom destination address field so it will be easy to send to yourself/etc shortly. Thanks!
Would really really like this feature to be implemented.......
How this isn't a feature already I don't know.....
I am really struggling with this, did you find anything out or did anyone come back to you?