You will use the Catalog menu very often in your CRE Loaded store -- this is where you create your catalog, add categories and products, and update product information.
Cross-selling lets you link related products -- such as books in a series or matching articles of clothing -- so that customers viewing one product will see links to the others. See Sales and Promotions, Section 3.3 in the Online Manual for complete information.
This menu lets you manage products that are not yet in stock but will be available on a specific date. You can enter the information here, and the product will automatically be added to your catalog on the date indicated. See Creating Your Catalog, Section 2.8 in the Online Manual for complete information.
Product Extra Fields (CRE Loaded Pro and Pro B2B versions only)
Product Extra Fields provide information about special requirements or options for products, such as the option to have a product personalized, or special shipping needs (fragile, perishable, etc.). See Creating Your Catalog, Section 4.1 in the Online Manual for complete information.