import and export Button for individual mail

greetings

we want to be able to import and export a single selected mail to another account and used like a template or like draft
even be able to respond or to forward that same mail.
just like outlook with .msg format, the button should ingest the single mail file into the importer account and ask where to placed or directly placed on a folder call imported

big thanks to those who take the time to develop these zimlets.