Creating Envelopes?

Hello! I am a total noob to PT and have searched online and in the help section and still cannot find what I am looking for.



I am trying to create a simple panning envelope in a track and I cannot figure out how.



I figured out that volume envelopes are available in AUX tracks, and so I am good there - though it would be nice to be able to create envelopes in tracks as well.



Any assistance you can offer would be appreciated!!!