Nordic ID International HeadquartersMyllyojankatu 2AFI-24100 SALOFINLANDPhone: +358 2 727 7700Fax: +358 2 727 7720Email: support@nordicid.comwww.nordicid.com3.2.3 ‘Navigation Ring’The ‘navigation ring’ captures control of cursor movements in the editing context, and control ofselection among the items grouped together by window elements such as menus, lists, or thedesktop icons representing applications and utilities. The functionality of the ring is similar to that ofthe arrow keys on a PC-keyboard.3.2.4 ‘tab/alt’ KeyThis key is a two-mode in nature; it is both a TAB key and an ALT key. TAB is the key’s defaultfunction. ALT function requires pressing once the ‘F/mode’ key before pressing this key.Conventionally TAB advances cursor predefined number of spaces or to the next tab stop in thetext editing context. As a TAB the key also gives navigation property by controlling of the inputfocus movements among window elements. The input focus means that the window elementhaving input focus is activated to receive messages from user’s key presses.As an ALT this key is often pressed together with some other key (ALT + key combination), andaction taken is usually application dependent. The key pressed as a mere ALT accesses variouswindow menus.3.2.5 ‘F/mode’ - Keypad Function/mode Selector KeyThe key is a multi-mode selector. By means of the ‘F/mode’ key it is possible to changealphanumeric keys either functioning as numeric or as alphabetic and numeric keys. The key alsoswitches between lower case and upper case letters. In addition, by this key, the numeric keysoperate as function keys, and ‘tab/alt’ key as an ALT key.As an ‘F’ the key is pressed once. To get ‘mode’ changed the key needs to be pressedsuccessively twice. Note that the ‘F’ feature of the key is not coupled with the ‘mode’ feature. Toput it another way, e.g. after one key press the number keys act as function keys no matter inwhich mode the alphanumeric keypad is.The functioning of the key is explained in more detail in the context of the particular key or keysover which the ‘F/mode’ has control.3.2.6 Alphanumeric KeypadModes of alphanumeric keypadAn alphanumeric keypad can operate in three different modes as follows: In numeric mode In lower-case text-writing mode In upper-case text-writing modeThe mode of the alphanumeric keypad can be changed by two consecutive ‘F/mode’ key presses.The mode of the alphanumeric keypad changes in the following sequence:1. From the numeric mode to the lower-case text-writing mode2. From the lower-case text-writing mode to the upper-case text-writing mode3. From the upper-case text-writing mode again to the numeric mode