How to insert a barre in fret diagram - MuseScore 2.0.0 github-musescore-musescore-a925ae0

Ok, so:

1) Drag and drop on the score the fretboard diagram from Symbols palette

2) Click right on the diagram -> Diagram Properties fretboard

3) For example, to get an F, first set up this configuration (you may see the number 6 for strings in the spinbox at the bottom of this window)

4) Press the Shift key, and then click on the first fret of the 6th string, like this:

First result:

Final result on the score for the F chord:

You can change the width of the barré line at your convenience by going to Style -> General -> Chords symbols -> Barré line width

Note that the principle is the same if you want a four strings barré (or other). In this case of A7 chord: Shift, and then click on the fourth string, second fret: