Allow bracket in "arpeggios and glissandos" to share chord with other arpeggio symbols
A few issues with the Half barre symbol in the "Arpeggios and Slides" palette. The underlying problem is that half-barre is being treated as an arpeggio for display and playback purposes:
(1) The Half-barre simply indicates a partial bar across the fretboard with one of the fingers, it is not an arpeggio symbol and should have no playback affect.
(2) MuseScore does not allow more than one arpeggio symbol per chord (if you try, MS simply replaces one with the other). But half-barre is not an arpeggio and may need to share a chord with an arpeggio.
(3) Half-barre doesn't belong in the "Arpeggios and Slides" palette. It should be in another palette instead – perhaps "Lines."