Woocommerce Easy Checkout Field Editor Plugin Lets you Add /Edit / Delete fields in checkout form . You can reorder them using our Drag and Drop Admin UI .Plugin Supports 8 types of widely used custom fields. You can opt to send custom field data with order email and also display it on admin order page.
Demo: http://codecanyon.net/item/woocommerce-easy-checkout-field-editor/9799777