turn ot on
fn+mixer
hit the down button to get to midi
press right button
if u r on control hit enter
everything should have an x
and say
int+ext
exit that menue
go 1 menu further down = SYNC
hit enter
hit everything that you want to activate …
have a look at the channel settings …
adjust to taste 
dont forget Midi Through does not send out data that is generated with the machine, it only passes data through