Feature Request - Instr Filter Galley view: Option to play back only visible instruments

[dspreadbury]

Please see this existing thread:

Dorico 4 - Option to solo instruments in instrument filters

The new instrument filters are really useful, although I think it would be time saving if there was an option to automatically solo the filtered instrument set. Currently if you have a full orchestra and you’ve filtered it to just the brass for example, you still hear all of the orchestra parts. If often find it useful to just listen to one section in isolation, so if there was an extra button or preference to only playback the visible instruments on screen, that would be really useful. Being ab…