Key Signature Command
A new key signature can be added at the insertion point with this command. When the key signature of an existing section is changed, the visual properties of the notes in that section are not changed in any way.
Each staff must be assigned the appropriate key signature.
A key signature designating the key of C is displayed as a single natural sign in the score editor. This is done to visually show that a key signature is present in this location. When the score is printed out, it will not show the natural sign.