Here you can see a list of all ordered items, the total price and other order details. New items can be added by clicking the Add item link. This opens a new dialog allowing you to choose an order item, its quantity and, if defined, item options. The tab also allows to enter a discount coupon code if available.
By clicking the Empty button the listed items can be removed from the shopping cart all at once. Besides, you can remove only selected items if you check the boxes next to the respective items and click the Update button. By clicking the icon you can view the product price details.
You can Edit () product properties and you can also Edit () order item properties but only if the current order is not marked as paid. However, this editing is enabled only if the web.config file contained in your web project folder is properly configured (i.e. the CMSEnableOrderItemEditing key is set to TRUE and the CMSUseCurrentSKUData key is set to FALSE) as described in detail in the Web.config settings topic in the Configuring your store -> Settings section of the E-commerce Guide.
If you mark the Send order changes by e-mail checkbox, a notification about the changes in the order will be sent to specified e-mail addresses (typically to the customer and to the merchant).
More resources concerning products can be found in E-commerce Guide -> Managing your store -> Products.
Further information about orders can be found in E-commerce Guide -> Managing your store -> Orders.