I'm running BIAB 2010.5 for Mac and doing bass and drums only backing tracks for a jazz trio performance. I play jazz on a classical guitar, so this is a Charlie Byrd type trio. I want to practice comping for a bass solo, so I created a real tracks upright bass solo to play on the third chorus, but I need to mute the regular bass track for that chorus. Is there a way for me to do this with my version of BIAB?