I am to setting up shopping carts. I looked everywhere for this and can't find how to do this, so I appreciate your help.

1. I want to put PayPal "Add to Cart" buttons on my product pages. How do I add this button to my pages?

2. I can't figure out how to set up my PayPal API Credentials for "PayPal Express Checkout". When I click Admin > Modules > Payment, this is the page I see



There is no "Install" or anywhere to put my API username and password. Am I missing a step somewhere?

This is a fresh Zen-Cart 1.3.9h install.

Thank you very much

W