Choose 3 fabrics for the first quilting pattern (There are more quilting pattern options available and shown in step 2). The checkbox in the bottom right of the fabric preview indicates a selected fabric.
You can change the pattern using the options as indicated above (Circle 2). The second and third quilting pattern options allows for a fourth fabric to be selected.
You can also click on the link (Fabric code) below the preview image as shown above (Circle 3) to open the page of that fabric and make an enquiry from there.
Play around to mix & match different fabrics