Correcting notes written in the wrong key

Many of you have started writing a score and then realized that you forgot to insert the correct key after the clef. This simple plugin allows you to correct this oversight: just add the correct key to the clef and click on 'Adjust Notes', and the notes will be corrected to the indicated key. Obviously a plugin cannot distinguish between notes written inadvertently with the wrong accidental and those written intentionally, but it can certainly save time. It is however possible to keep, in the case of minor scales, the leading tone VII°, just as it can be used to transpose a piece from 'major' to 'minor' without changing the key signature (and vice versa). The procedure can be applied to the entire score or to a selection.
Available for version 3.6 and 4.4