Thanks to Odoo I have my eCommerce. Now I want to sell my products. So I built a landing-page for my social media campaign ads.

This landing page must have a CTA button to send users directly to check-out process without having to go through the shopping cart.

I found out an interesting free app ("Buy Now Button in Website") that provides this kind of button on "products grid" and "product details" pages, but: how to put this button on a landing-page?

TIA to anyone can help me with this.