A lens or default ability for the laser. Where you drop the enchanted item item and a book, and a laser writes the enchantments from the item to the book and removes them from the item. If say you have 3 enchantments on an item and drop 3 books, it writes 1 enchantment to each book, or if you drop 2 books, it's random 2 to 1 book, 1 to other.

Also, possibly the option to enchant items with books in the laser, of if you'd rather use RF than XP in an anvil.