There are two problems when you want to select products in eshop products module - you can't select specific products by SKU. If you have a lot of products, that can be difficult. A lot of products have same names, and you simply can't tell, which products you are selecting... SKU is unique identifier, so it should be this parameter to select products by. The same problem is when you select related products - no SKU opton, only name. Please enable SKU selection and some other type of multi select option so you can see, what products you are selecting. It is problem in many websops i manage, because a lot of them have more than 5000 products...
