I would like to add a solo soprano stave to my sheet, can anyone tell me how to accomplish this?
I'm also using Garritan Personal Orchestra 4 and would like this stave to play back with a solo voice sound.
Just go to window tab and find the score manager. In the score manager you can add, delete, rename, rearrange, and do so much more to all the staffs. There you can add a soprano staff and rename it solo soprano. If you want a sound from the Garritan library you can set it in the score manager too.
Edit: This how to configure the Garritan library. It is directly taken from the link in the comments.