hello,
after searching forum and the manuel i can find a exact answer about this question 
for example kick on ch 1 snare on ch 2 hithat od ch 3 routing to ch 4 as a drum group track.
is this possible in Renoise?
Look for the term “send track” and “send device” in the manual, your answer lies within there…
Send Device on each track and use the Send Tracks which are located to the right of the Master track.
Sorry my brain isn’t quite working today to phrase that very well but hopefully it shows you what to look for.
aaa i understand send track/device is the answer, ok thank you guys for the help.