Actually it's now possible with the 2.0 version 🙂
On the new demo site you can see a WooCommerce example, where the results are filtered by product categories (which is a custom taxonomy)
If you already bought the search earlier, you can download it again from codecanyon.
If you haven't and you need to check the compatibility with another plugin, you can let me know here. This site is still a little messy, I can hopefully make a pre-sales question form soon 🙂Best,
If you like my products, don't forget to rate them on codecanyon :)