Building a menu system

Hi,

I try to set up Hikashop business version for the following terms.

product1 (categories: girls, size1,size2,size4,)
product2 (categories: girls, size2, size3)
product3 (categories: boys, size1, size4)
product4 (categories: boys, size1, size2, size3)

Now I can list the products, selecting:(girls, subcategory size1) or (boys, subcategory size4)
but in these case, I have to set different subcategories for sizeX ( one for boys, one for girls)

I'd like to use only one category for sizeX (not many subcategories) and listing products:
menu item: girls (coming up all girls) submenu size1 (coming up all size1 which belongs to girls)
menu item: boys (coming up all boys) submenu size3 (coming up all size3 which belongs to boys)

Any chance to do that?

Thanks
pproject

Thanks your quick reply.
Just thinking about further....
Other way, if I use multilevel searcing for listing products instead of menu system. I mean few dropdown selections which narrow
the listing step by step.
Can the built in category and product searching plugins assist for that, because I can't see any parameter set up in that plugins?

Thanks

Yes, I did it that way, what you advise. Just I am dreaming about simplifying the category management...
An other question.
I have created a characteristic which contains all sizes and the same subcategory structure.
For given product linked the size categories where the product is available and put to enable the same sizes in characteristic.
That is working fine, just want improve the listing further by the available quantity of version(size). Listing the products
in given size first in order quantity. I mean given size of product higher quantity first,..... zero quantity last.
Just not able to configure the modul with parameters of versions.