MU4 select non-adjacent staves

I think it would be fantastic to introduce in MU4 the possibility to select non adjacent staves, especially since it has been introduced the possibility of playing only the selected staves. This feature would become particularly handy with scores for large ensemble and orchestra, for which muting or soloing parts through the mixer would be less practical. Is there already a plan to implement this in MU4?

Another cool feature which would provide a huge quality of life improvement would be the possibility to "focus" on the selected staves from a contextual menu rather than selecting the view button for each instrument in the instrument list. I imagine something like: select the staves you want to focus on, right click and get the option to focus on the selected staves; to go back to maybe adding a "display all" button (even in the instrument tab itself). Or simply allow to select non adjacent instruments in the instruments tab so to view/hide them form there.

Sorry but it came out as two feature requests, should I split them?