Adapt code plugin FEED

I have a web site at system wp woocommerce and plugin Feed by add products I want to adapt the code to tag the following plugin The code already exists only need adapt to my need I need only add the tag brand with the category add to product [login to view URL] The plugin of FEED of products from the store is this: [login to view URL] To create tags automatically on the basis of the category of product and brands of products: Tags of products would be thus; Category of products+ brand of product For example; add the product to the category clothes and NIKE brand, the codes automatically add the following tag to the product: "clothes Nike"= "Category brand" Add to all categories parents EX: category: Clothes /PANTS/JEANS To add product categories above the code would create the following tags Clothes Nike, Nike pants, Jeans Nike A exemple is attached