Logic Pro 9 sample changes in one track?


:confused:I am currently working on the Logic version of my own MIDI file of Elgar's Enigma Variations. (Yes complete!)

As usual, I imported the SMF but found that, in the cellos, the one-track program changes from cello ensemble to cello solo remain on the one track.
To get the change, do I have to put it on two tracks (the change is shown in the list view and hyperdraw but no change is heard.) and if not, how would I set it up?