I am new to BB. I do live keyboard/vocal gigs and am making backing tracks to use in my show. I know how to add an instrument (sax, strings,vibes, etc) to the soloist slider in the mixer but I don't know how to control when the solo plays. Right now I get the soloist instrument playing from the start of the track unless I mute it. How do I make it do a 12 bar solo after, lets say, the second chorus? I know there must be a way. Help?