Hi Jayou,
What device are you trying to automate, and which parameter do you want to automate.
You should be able to automate the knob by recording the track and then moving the knob.
The knob will then be automated.
Matt.

__________________
www.reason4tutorial.com
Over 9 hours of easy to follow, step by step online video tutorials that teach you everything you need to know about Propellerheads Reason 4.