Beginner question: multiple sound channels in Maxi on iPhone

Hi all,

I am using Maximilian on the iPhone. I have set up a system that calculates where a sound is from the listener, and scales the left and right channels accordingly to get a sense of 3D space.

My question is how do I create more than one sound channel? My system works fine at the moment with one sound using this function to pan the sound…

  
mymix.stereo(mySample, outputs, myPanning);  

…but not for multiple sounds. Please could somebody explain quickly how to go about using multiple sound channels in Maximilian on iPhone.

Apologies for the beginner question but it seems this is the best place to get help.
Many thanks in advance.