The crib system is a system of giving the user information, a crib sheet, for a method. It can be used for any method in the database, or indeed, any method that the user cares to make up. It will show a single lead of the method, much like the wool and nails systems you see in some towers. It will also give you an English description of the method that you can use to learn the line.
See Create a Crib
See Crib Window