Changing Multicam Audio Sequence Settings After Creating

[#1]

Hi 

My multicams are bringing in only a stero version of all 5-6 audio tracks making it impossible to solo one audio source while intercutting through the different shots.

I realized I was supposed to pick "All Cameras" in the Audio Sequence Settings in the Create Multicam dialouge box, but chose "Camera 1" instead. I've made over 30 multicams and need to find a way to change the settings of the multicams so that they reference audio from all 5 to 6 audio tracks that are inside.

Any helpful ideas?