Anything yet?
P.S. For whatever's sake please stop challenging the premise. People need it and it should be there. Of course they know they can copy-paste, and they "could have created it right in the first place". Such comments are simply non-empathetic. At least from the data model pov it should be there – your application has two types for same commodity of data, then it would only be beneficial for the users to allow converting between them. That's it.
P.P.S As a long time avid CorelDraw user (before they 'effed up their multi-platform licensing) who could never fully like Illustrator, Affinity is a breath of fresh air. Just few nudges here and there and it'd be a perfect replacement for both.