Thanks for your answer but I don’t think using attributes is the ideal solution for specifications. It could work up to a point, like to use when it would apply to a large number of similar products, like to specify condition (using terms new or used) or format (CD, Vinyl LP, Vinyl Single, DVD) etc, but not for things like catalogue or barcode numbers that are unique to each item. My data is already imported as custom fields, I just need a php snippet to insert these fields into a more details tab on each product. It shouldn’t be that difficult I wouldn’t have thought to someone fluent in php (which sadly is not me); it’s only simple custom field text data to insert onto a product page. Anyone have any ideas?