Yes you can always record / edit on any midi song.
Just set the correct channel and you're good to go.
Just note Channels 9 to 16 are for styles ( Quick Rec )
Channel 5 to 8 Multi Pad ( Quick Rec)
Ch 1 R1 hand, Ch 2 left hand, Ch 3 R2 Ch4 R3 " tyros and genos '
(Quick rec)
Regards Norman