Hello,
You cannot edit the default WooCommerce checkout page directly. Instead, you can use the Theme’s Layout Builder to create a custom Checkout Layout and modify its structure according to your needs.
You can learn more about the Layout Builder here:
https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
If you want to disable or manage existing checkout fields, please refer to our Fields Manager documentation:
https://xtemos.com/docs-topic/fields-manager/
To add additional custom fields and achieve a checkout design similar to your reference website, you may need to use a third-party plugin that extends WooCommerce checkout functionality, as such custom fields are not available in the theme and woocommerce by default.
Best Regards