Filtered view (like Focus on Staves in Sibelius)
A feature I used to use quite a bit in Sibelius is focus on staves feature enabling a filtered view where only a few parts are visible. This would be especially handy when working on large orchestral scores. I see that this feature has been requested in the past: https://musescore.org/en/node/7607
Maybe it would be feasible to add this in a future version of Musescore.