1. push patch button
2. push midi/param button
3. you'll notice that the buttons are grouped
in sets of fours,each button numbered the lower numbers are midi channel 1-0
4. select the channel choice 1 thru 9 then enter.
5. to select 10 thru 16 repeat steps 1 thru 3. then (for example channel 13) push
1then 3 then enter.
good luck.
ps. if you turn off the unit it will default
back to upper=ch1 lower=ch2