Menu Navigation

Feature:	Menu Navigation Key
Default directory number:	non
Feature number:	97
Parameter 1:	Navigation operation
Description:	Programming station menu navigation from DAK keys. Parameter 1 values: 0 Up to previous level in menu structure 1 Down to next level in menu structure 2 Go to previous (left) menu element on same level 3 Go to next (right) menu element on same level 4 Activate if possible, else navigate downwards