To see product in parent category from tree of categories without adding in whole tree.

[mandeepmavi]

Hi,
Want to know is this possible to do,

If I create a tree of Categories, and add a product in branch category only. Can we see the product in parent category in eCommerce or I have to add product in whole tree.
eq.
1) Auto Part (Category)             (want to see all here)
               |
                -Lights(Category)     (want to see both A & B here)
                         |
                          -Back(Category)   Product A
                          -Front(Category)  Product B

As above I have Product A and B in their Categories, I want to see both product in Lights(Category). Is this possible to see theses products in parent Category without adding or I have to add in whole tree.

Regards