Hello,
1. To use Prefooter from widgets you need disable “Use Prefooter” in Blanco – Theme Settings > Footer.
2. Where do you want to display the buttons? There is Checkout page by default from Woocommerce.
3. Your home page is located in Pages > Home page.
4. Please clarify your 4th question. Do you want to place that shortcode somewhere on your site?
Thank you.
Regards,
Eva Kemp.

