Text keys include the following:
In text-entry contexts, pressing a text key enters the corresponding character and typically displays that character on the screen. Except in special views, the characters produced by the TAB and ENTER keys are not usually visible. In some contexts, text keys can also be used for navigation or for invoking specific operations.
Note
Most keyboards include two keys labeled ENTER: one on the main keyboard and one on the numeric keypad. Because these keys have the same label (and on some keyboards the latter may not be available), assign both keys the same functionality.