Allow attachments to be added to emails Merged

It would be useful to be able to add other attachments to emailed invoices, especially as there is no Quotes function in Reckon One. I have clients to whom I have to send invoces and copies of RCTI's, image files or other .pdfs. It would be very helpful to be able to do this from within Reckon without having to save the invoice as a pdf on my computer, open Mail app, and then attach invoice and other documents.