How to delete the left channel only in the audio track

Hello All,
I have put some video in the timeline that was recorded with a camcorder that only had mono sound. What I want to do is delete the audio track that has no sound, duplicate the audio track that has sound so that there are two audio tracks.
Now I've tried several different ways to do this, but it seems that FCE will only let me delete both audio tracks. How do I just delete one audio track and leave the other one intact?
Thanks for your help.
Mike

Select the audio. Then select Modify>Stereo Pair. You can then select the empty track to delete it. Then double click the remaining track to load it into the Viewer and set the Pan control in the Viewer window to 0.

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