View - E-Commerce - Edit Web Site - Content - Product Selection - Items in your Web shop
By clicking on Items in your Web Shop, a window will pop up where you can easily administer which of your products you want to be available in your web shop.
You do so by highlighting the products in the above list and then moving them to the bottom window by clicking on the arrow-buttons. The items available in your web shop are those displayed in the bottom window.
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