You can record or enter MIDI controller data for a MIDI part in the controller lane, or for an automation track in the Project window.
To show and edit MIDI controller data on the automation track, you must extract the MIDI automation from the MIDI part.
MIDI controller data from the automation track is also displayed on the controller lane. However, you cannot edit this data on the controller lane.
On the controller lane, you can also see the controller curve that is applied before the part starts. This tells you which controller value is being used at the starting point of the part so that you can choose the start value accordingly.