How can i assign channels in Dark Planet so i can have several midi tracks playing different sounds?
for the moment i have no midi keyboard.
You didn’t give any detailed information here but…
My Dark Planet instrument sounds are found in the Halion Sonic SE VSTi. So just assign Halion to each midi track and choose the sound you want the track to play.
Regards 
yeh thanks, I already did that and am satisfied with the result.