Each black 2-key combination above is a shift function to obtain the rest of the letters in each group, or just produces the letter marked on it when pressed alone. The ABC-123 mode change toggles between the two character sets (black and grey) inside the frame shown above. With SYMB, single characters can be picked from the parallel set, also outside the frame. For example, semicolon is obtained by pressing SYMB and then full stop. SHIFT is only for capitals. Two consecutive SHIFTs set CAPS LOCK on and one SHIFT only has an effect on one character.

The main principle is that for frequently used characters, only 1 to 3 simultaneous key presses are needed but for functions more. This way typing is lighter and functions will not be activated by mistake if typing carelessly.