wpml-config.xml

<wpml-config>
  <custom-types>
    <custom-type translate="1" display-as-translated="1">mp_menu_item</custom-type>
    <custom-type translate="0">mprm_order</custom-type>
  </custom-types>
  <taxonomies>
    <taxonomy translate="1" display-as-translated="1">mp_menu_category</taxonomy>
    <taxonomy translate="1" display-as-translated="1">mp_menu_tag</taxonomy>
    <taxonomy translate="1" display-as-translated="1">mp_ingredient</taxonomy>
  </taxonomies>
  <custom-fields>
    <custom-field action="copy">nutritional</custom-field>
    <custom-field action="copy">price</custom-field>
    <custom-field action="copy">attributes</custom-field>
    <custom-field action="copy">sku</custom-field>
    <custom-field action="copy">mp_menu_gallery</custom-field>
  </custom-fields>
  <admin-texts>
    <key name="mprm_settings">
      <key name="buy_now_text"/>
      <key name="manual_description"/>
      <key name="sale_notification_subject"/>
      <key name="sale_notification"/>
      <key name="from_name"/>
      <key name="purchase_subject"/>
      <key name="purchase_heading"/>
      <key name="purchase_receipt"/>
      <key name="checkout_label"/>
      <key name="add_to_cart_text"/>
      <key name="paypal_title"/>
      <key name="paypal_description"/>
      <key name="cod_description"/>
      <key name="cod_title"/>
    </key>
  </admin-texts>
</wpml-config>