Is there way to output a MIDI track to left channel only?

I am assuming that you want to send to output of a midi "Synth" to the left side only?
 
My understanding of midi is that it's sent on a channel and not a left/right thing.

But if you are getting a "click" sound, you can send the sound that that is generated from the midi info to left/right channels.
 
Not sure if I am understanding what you are looking for.
 
IOW, instead of sending the midi info left/right, send the audio left/right. If all you have is a stereo output coming out of your PC, then that's the only two channels that you could send the "click" audio out of, either right or left.
 
You could send all your program audio (the stuff you want the audience to hear) to the right side, then send the click track to the left and send that to your monitors. Problem with this is your main output to the audience would only be mono and you would have to take that into consideration when creating your program material.
 
Am I helping or creating more confusion? : )

NM I misread

Thanks everyone for their suggestions and feedback.  It has been very helpful.
 
Just coming off vacation, so when I get back to working with SONAR tomorrow (Tuesday), I'll try CC10 - which I don't know why I hadn't thought of myself, duh.  I'll need to put count-ins and such on a separate track of course, so there's a lot of editing in my future.  Pretty sure this thread will get me where I want to go.  Thanks again!

The easiest way to do this, if you want the audio to remain in stereo, is to use an interface that has more than two outputs.

Route the stereo audio to a pair of outputs and the click to another, which is then routed by the mixer to just the monitors.

Though the advisability of running a PA in stereo is debatable - often large sections of the audience will be hearing much more of one "side" of the stereo than the other, unless the nearest audience members to the PA speakers are somewhat further away from the speakers than the distance between the speakers. If the PA is run in mono then send the backing audio to one interface output and the click to the other, then again at the mixer send the audio to PA and foldback and click to foldback only.

PS - MIDI is neither stereo or mono, it's just instructions telling something that understands the instructions what to do. As well as telling a synth to pan its output you can also pan the resulting audio using Sonar's ordinary panning controls, or collapse a synth's stereo output to mono.