Create a Wordpress Template

Add a 'streamlined checkout' option to my plugin. Add a checkbox to my plugin settings page that enables the following feature to override the default woocommerce settings when checked. The feature will add a teespring style pop up to the product page of my existing plugin. The popup should be mobile optimised and allow users to add multiple versions of the product to the cart the same way Teespring does, add a coupon code and have a button that skips the cart page and goes straight to the checkout. The plugin should also remove certain fields from the checkout page.