How to enable Connection Settings on WooCommerce for integrating Payeezy Gateway

I'm trying to integrate de Payeezy Gateway Checkout mode for a web-site built with WordPress along along with WooCommerce.

I already have my demo account, but I do not have the connections settings section enabled to provide Demo Gateway ID, Demo Kei Id, etc...
Instead, I have a button that says "Sign up" on the top, I'm assuming that I need to sign up before having those fields enabled.

For a more detailed explanation, I posted this same question on Stack Overflow:
https://stackoverflow.com/questions/46428123/wordpress-woocommerce-how-to-login