The final character of the shortcut string only labels the key, not the character. Thus a shortcut of `+` and `=` are the same. To actually get what you want you could do `shift+meta+=` or `shift+meta++`. The reason that I didn't automatically map `+` to `shift+=` is that it was more difficult to normalize those shortcuts to a standard form. All of this will definitely get a test suite to cover all of these things though.