The following video covers how to set up PayPal as your payment processor.
1. Set up or convert your existing PayPal account to a business or premium account.
2. Log in to your Store Admin Page
3. Go to Store configuration and click on Settings
4. Click on Payment methods
5. Follow video below.
6. After you enter your LIVE API key and secret code, UNCHECKED ALL boxes. If these are chosen as you will not have the ability to capture emails or do any upsells if they are checked.
Then watch the video below for step by step instructions