How To Change Adjust The Panning Of Stereo Tracks (Audacity 2.4.2)

I was wondering if there was any way to change the panning of a stereo track, so that (for example), you could have a piano be 50% panned to the left instead of 100% panned to the left. (So the piano would be louder in the left ear, but still audible in the right ear).

Use the track’s “Pan” slider. See: