Crear una página web

Hello, we need to develop a widget inside of the product details page in prestashop getting the related products of a current one product and letting people to add to their carts. We want the people to get the look the see in the picture and want it to be as shows in the attached screenshoot. This is our current setup: [login to view URL] We want something like this: [login to view URL] Also, in the attached image you can see how we want it to be look. We need it to be able to put quantity, size and add to cart.