I am having issues with my choral set-up: I downloaded the update, and now I can’t seem to load other instruments to choose from. (See picture attached)

Also, is there an option to choose different voices/voice qualities for each (soprano, alto, tenor, bass)? Because as of now they all sound the same, even though different voice types of course have different timbres etc - or would I have to adjust that in the panel? (Right now it won’t let me edit the different tone colors…)

Thank you so much!
~ Nina
Screen Shot 2017-06-30 at 11.51.38 AM.jpg

maybe this will throw some light?