Nano Key only controlling synthesizer. What about drum track

[Rusbra]

Hey All, I ran into these forums when I first purchased the ipad application for the im-s20 and I've been able to find a countless amount of useful information. So let me thank you for all the useful threads on these forums.

Now to my issue. I'm using the Korg Nano Key, and I can not seem to figure out how to control any other track (ie a bass line on drum track 3) besides the synthesizer with the nano-key.

Is it possible? Or does the nanokey only control the synthesizer track?