Category Configuration

Hello,
i have question about configuration or management off category items. Maybe some body has an idea how to solve it.

I have the menu topics A, B, C, X

X has a subcategory Z which is also present in A and B.

A >> Z
B >> Z
X >> Z

I have this problem for multipal categories. Have some body an idea how to manage this problem?
I was thinking to develop that one subcategorie can have mutipal parents, but i'm not sure if this will cause in problems. Maybe one Z product has 10 categories the next Z product has 20 categories. I think i have to edit all categories with subcategorie Z and all products with all subcategories. That's a lot of work.


Best Regards

A Category can only have one parent category.  It is possible to have multiple categories with the same name, but they are separate categories, and you would have to put the products in both.