Automation
Cubase SE3 ships with easy-to-use automation functions. You are free to automate nearly all mixer and effect parameters. The same goes for VST instruments, regardless of whether they are integrated plug-ins or third-party vendors’ instruments.
As a rule, you have two options for automating parameters:
Drawing Automation Envelopes
Every track in the Project window contains automation sub-tracks for all automatable parameters of the given track type, which you can show and hide on demand.
You can draw and edit automation envelopes directly in the panel. You have various line and curve tools at your disposal to do this.
Automation via the Write and Read Buttons
Alternatively, you can opt to use the Write and Read buttons to record and play back automation data. Write and Read buttons are available for all mixer channels as well as for every effect plug-in/VST instrument.