It would be awesome to be able to group by collection status when using the "Decklist" deck tool.
Everytime I want to put into a cardmarket buylist the cards I'm missing from my collection I have to copy the text from the "Missing Cards" feature and delete a bunch of junk that the store site does not understand, so being able to group by collection status and generate a list of [quantity] [cardname] elements would be a great improvement for users like me.