How do I activate the Audi A7's Parking Assist feature?

I recently purchased the Audi A7 and can't seem to figure out how to activate the Parking Assist feature. How do I turn it on and what are some tips for using it effectively?

To activate the Parking Assist feature, press the Parking button on the center console. It will then prompt you to select between parallel or perpendicular parking. Once selected, the car will guide you through the process. My personal advice is to practice in an empty parking lot first, and make sure to always pay attention to your surroundings.