Hi, just need a bit of help regarding FX…
I know how to place an effect on a whole track, but am stuck when it comes to effecting a single note/sample. I have not yet grasped the fx column.
Any ideas or help would be great.
Send tracks and send devices are what you need.
This thread might help:
http://www.renoise.com/board/index.php?sho…c=12122&hl=
Cheers, cant see the wood for the trees. 
i also recom send devices but some times this is the fastest and easiest way to work it out:
from: help → view, show pattern effect commands