Quote Originally Posted by swguy View Post
It is certainly possible, but a complete implementation would require a lot of changes (and a boatload of even more confusing documentation), so I didn't go this route, although I seriously considered it at one point.
I have to agree, this module needs to support linked products. For example, then it would be so easy to throw a bunch of products into a sale category for a BOGO sale.

Otherwise, changing the master category id could be detrimental to SEO. Please consider using the function
PHP Code:
zen_product_in_category(products_id, category_id) 
This function works for linked products and top level categories.