Feature Request: Auto-insert a "space" when attemping to type in a note at the last empty note slot

[blamarche]

Description
Currently, when on the last slot for a note on the staff line, typing a number (such as "1") does not result in adding 1 to that space, nor does it add a new space. Ideally, when typing in a number into this "dead" space at the end, it should auto-add the note to a new space, and then move to the "dead" space at the end of the line