The documentation section contains several video tutorials and PDF user guides, which show you how to use the commercial Photoshop add ons.
Additional 33% discount during the pandemic:
Use the coupon code EXTRA33 in the checkout page to apply an additional 33% discount, on top of the 60% discount already applied to the bundle price. Cost after the extra discount:
59.90 39.90 EUR | 69.90 46.60 USD