musescore/MuseScore — pull request #227 by Isenbarth (2013-02-20 12:11:37+00:00)
Title: additional update accidental

Adds a new mode for changing accidentals. When pressing the ALT-key while dropping an accidental from the palette or clicking one of the accidental buttons, the new accidental will be valid for the whole measure resp. the next accidental on the same line. I ou need this often when correcting a score.