I've played HotE for years and I couldn't tell you the name of the shops. I don't think this would be very useful. I don't think I've seen many, if any, games that do that for recipes. I feel like the tooltips would get too long with all of that.
Fair enough. I just remember back when I played the game for the first few times, having to scan through all the shops looking for that one item that I need for the recipe ..
It certainly is no issue for more experienced players any more