Add on showing on cart

This module finally gave me hope after trying to hard to find a possible solution. My main issue is here http://www.drupalcommerce.org/questions/13333/sub-product-dropdown-uder-....

And i finally found this module. The functionallity i am trying to achieve is to have the add on product display in the commerce cart view instead of having it show on the product display cart.

So the user is not given the option to choose an add on product untill they are checking out.

Example. on the cart page

---Main Product 1 ---------------Price--Quantity---Total
------Available Sub Products
--------Sub product 1 -----------Price--Quantity---[ADD TO CART]
--------Sub product 2 -----------Price--Quantity---[ADD TO CART]
--------Sub product 3 -----------Price--Quantity---[ADD TO CART]
---Main Product 2 ---------------Price--Quantity---Total
------Available Sub Products
--------Sub product 1.2 -----------Price--Quantity---[ADD TO CART]
--------Sub product 2.2 -----------Price--Quantity---[ADD TO CART]
--------Sub product 3.2 -----------Price--Quantity---[ADD TO CART]

And after the sub product has been added to the cart the view table looks like this

---Main Product 1 ---------------Price--Quantity---Total
------Available Sub Products
--------Sub product 1-----------Price--Quantity---[UPDATE]
--------Sub product 2-----------Price--Quantity---[UPDATE]
--------Sub product 3-----------Price--Quantity---[UPDATE]
---Main Product 2 ---------------Price--Quantity---Total
------Available Sub Products
--------Sub product 1.2-----------Price--Quantity---[UPDATE]
--------Sub product 2.2-----------Price--Quantity---[UPDATE]
--------Sub product 3.2-----------Price--Quantity---[UPDATE]

How will i implement this. This module solves half of my issue by grouping a product and an add-on product together.
Thanks.