Another wishlist item. Kleopatra has this stone old "Dragqueen" mechanism to handle dropping of files in Kleopatra.
I think this should be replaced if it could somehow go through the mechanism of "command for file" it would be best. E.g. if you simply drop any file into Kleo it will open the encryption dialog. If you drop a key it will import it. If you drop an encrypted file it will decrypt it and if you drop an encrypted mail it will open the mailviewer. At least that is how I imagine it.