You may be wondering what this whole keyboard fingering refers to. Well, basically, it refers to the rules on which finger should press a particular key. Naturally, in some cases it is OK to hit a key with another finger, but generally it’s good to develop a habit of using only one finger for a given key. Obviously the rules have not been written in stone, and you can always adjust them to your needs, the size of your palm, or when the layout of your keyboard is slightly different from the regular one.