Yes, and you would do it exactly as you already described in FCP.
Basically, you would drag the audio to the timeline, copy/paste that track and drag it down to the next available audio track. Then, you would pan one track all the way to the left (the pan controls will be in the Viewer once you double-click the track) and the other track all the way to the right. At that point, you should hear audio in both channels.