musescore/MuseScore — pull request #132 by trombonechamp (2012-11-23 02:54:34+00:00)
Title: Simple courtesy accidentals

This patch allows you to insert parenthetical courtesy accidentals by just dragging the parentheses symbol onto the note, or double clicking it when the note is selected.

See: http://musescore.org/en/node/12496