Share 'Lactose added separately to Milk Chocolate?'

I have been getting encouraging results making milk chocolate and I'm looking to experiment with malt extract and possibly lactose.  Studying the ingredient list in several milk chocolates one can see lactose is sometimes included as in individual ingredient. Eg. see Lindt's Swiss Classic Milk Chocolate which lists sugar, cocoa butter, milk ingredients (?), cocoa mass, lactose, soya lecithin, ba…