[Plugin: WooCommerce – Product Add-Ons] Application of function on widget

I have installed:

1. WooCommerce
2. WooCommerce Bookings – https://www.woothemes.com/products/woocommerce-bookings/
3. Products Add-Ons – https://www.woothemes.com/products/product-add-ons/

For the default Products Add-Ons, it applicable to single-products page only. WooCommerce Bookings has included widget ready feature, in which I can drag and drop the widget into other pages. But for the other page, I can only use WooCommerce Booking without Products Add-Ons.

The example of the working well page as this:
http://www.getwsa.com/product/cut-bangsar-village/

The problem is when I add the widget “Listify – Listing: Bookings”, the Products Add-Ons below the booking form did not show. (I did not include the widget here, because the web is live)
http://www.getwsa.com/stylo/a-cut-above-bangsar-village-ii/

What if I wanted to apply the function into WooCommerce Bookings widget, so that I can drag and drop the widget wherever I wanted in future? With the functionalities of Products Add-Ons. Or any better idea for the implementation. Thanks!