Tremolo sign
Since version 3.6, the tremolo symbol is handled
automatically. You will find it at the bottom of the
Ornamentation tool palette (in the Tools menu). To use
it, add a note (alone or with a chord). Then select the tremolo
sign and click on the note head. A part of a tremolo sign
appears. Add the second note (alone or as a chord) and the
tremolo sign will adapt itself automatically. It will also be
played when reading the score, by alternating the two notes or
chords rapidly. There are two versions of the symbol, one with
the lines touching the note stems and the other one with the
lines not touching the note stems. Notice that the duration of
the notes are divided by two. If you enter two half notes with a
tremolo, the total duration is only one half note.