Changing I/O of audition path for preview in audiosuite

[Kalara]

I am having trouble previewing my Auto-Tune 5 via Audiosuite in graphic mode. I see the lines being drawn, but hear nothing.

The only available audition path in the I/O setup window appears to default to the first two output blocks available on the first connected I/O interface. Can I change this?

In my configuration that particular output path is not available (My first 192 I/O is an Apogee AD16X). Is it possible to change this path to output 15/16 on 192 I/O #3.