Sometimes you don't need all the instruments that are displayed in the Concert Band or Full Orchestra sight reading and maybe you'd like a way to remove some of the octaves or parts. Or maybe you're together with some friends and you'd like to generate some sight reading that you can practice together.
This feature would allow you to do that by letting you create your own custom ensemble of instruments for sight reading.
Really fantastic idea!!!
For instance teaching a woodwind class, Flute/Clar./Alto sax. Seeing just these 3 instruments would be much better.