Is there no finetuning as effect in renoise ?
I mean in the effectrow of a track ?! If there is really none, its needed badly, preferably with a width of a few notes. (like 0-ff, where 80 is normal and 0 is lets say two halfnotes down and ff 2 halfnotes up).
01 and 02 set the current played samples pitch. is this what you are looking for ?