Automating punches and export mp3 question

Cubase
1

Hi,

First post. two part question:

  1. Trying to figure out how to automate a punch in and out before export.
    I have a few instruments that I want to come in and out during the final mixdown and I have been unable to figure out a way to automate this.
    It is a simple, “on and off” situation.
  2. I purchased the “Mp3 patch” and cannot seem to find the feature.

Help?