create duplicate invoice / copy invoice / edit as new

create duplicate invoice / copy invoice / edit as new

Hi, please see below for our recommendations/feature requests:

1) in some customers many of the invoice services/categories are identical,  we believe it would help a lot if there was a way to create a copy of an invoice, ie. duplicate it, or "edit as new"

2) vouch for the "send payment reminder" e-mail

3) vouch for custom e-mail "from" address with the necessary spf/domainkeys/sender ID authentication for the sender's domain, to avoid spam issues

Thanks for the great service!