I find it very cumbersome to have to switch to the Score Setup view to show/hide parts. I work primarily on orchestral works and have 30+ parts per score. I would like a faster, more flexible way to show/hide parts without going to score config. I'm envisioning a filter panel that lets me choose things like show parts that share a common clef (bass, treble, alto, etc), or by instrument type (brass, woodwind, etc.). These filter options would need to be multi-select. Show me just the woodwinds and choral parts, for example. This would be incredibly valuable when vetting different parts against each other. I would also like to quickly be able to restrict playback to the visible parts.