I am currently building a website for one of my schools with Zoho-Sites. This web-site would mainly provide information and contact options for our school (in the Netherlands), but we are also planning to offer some (few) educational tools and lesson materials for sale. In short, we don't need a whole web-shop, but just a page with a 'commerce/payment/shopping cart-option'. 

On Zoho-Sites I did not see any options to add a 'shop-page' or insert a "commerce module", or something along those lines. How does that work with Zoho-Sites?