How to add unpaved roads preference to Tomtom Start 10

I've changed menus via SDKRegistry\tomtom.mnu but no luck with unpaved roads preferences.

MENUBLOCK|BLOCK_MAIN|BTM_DONE|
MENUPAGE|TASK_PAGE2| This remains blank|
MENUITEM|TASK_PAGE2|
MENUPAGE|TASK_PAGE2|Menu 1 of 3|
MENUITEM|TASK_NAVIGATE_TO|
MENUITEM|TASK_MENU_FIND_ALTERNATIVES|
MENUITEM|TASK_MENU_ROUTE_INSTRUCTIONS|
MENUITEM|TASK_MENU_DOWNLOAD|
MENUITEM|TASK_MENU_PREFERENCES|"options.bmp"|"Preferences"|
MENUITEM|TASK_PAGE3|
MENUPAGE|TASK_PAGE3|Menu 2 of 3|
MENUITEM|TASK_MENU_PLAN_ATOB|
MENUITEM|TASK_SHOW_MAP|
MENUITEM|TASK_ITINERARY|
MENUITEM|TASK_ADD_FAVORITE|
MENUITEM|TASK_MULTIMEDIA|
MENUITEM|TASK_PAGE4|
MENUPAGE|TASK_PAGE4|Menu 3 of 3|
MENUITEM|TASK_SHOW_ROUTE_DEMO|
MENUITEM|TASK_CONFIRM_DELETE_ROUTE|
MENUITEM|TASK_SET_COMPASS|
MENUITEM|TASK_SHOW_GPS_STATUS|
MENUITEM|TASK_ABOUT|
MENUITEM|TASK_PAGE2|
MENUBLOCK|BLOCK_PREF|BTM_DONE|
MENUPAGE|TASK_PAGE5|Preferences 1 of 5|
MENUITEM|TASK_SWITCH_NIGHTVIEW|"night.bmp"|"Nightview on/off"|
MENUITEM|TASK_CONFIGURE_POI|
MENUITEM|TASK_TUTORIAL|
MENUITEM|TASK_SET_CRADLE|
MENUITEM|TASK_SWITCH_2D3D|"2d3d.bmp"|"Switch 2D/3D"|
MENUITEM|TASK_PAGE6|
MENUPAGE|TASK_PAGE6|Preferences 2 of 5|
MENUITEM|TASK_SET_VOICE|
MENUITEM|TASK_SET_TOLL|
MENUITEM|TASK_SET_VOLUME|
MENUITEM|TASK_SWITCH_SOUND|"sound.bmp"|"Sound on/off"|
MENUITEM|TASK_SET_PROMPT|
MENUITEM|TASK_PAGE7|
MENUPAGE|TASK_PAGE7|Preferences 3 of 5|
MENUITEM|TASK_MAINTAIN_FAVORITES|
MENUITEM|TASK_CHANGE_HOME_LOCATION|
MENUITEM|TASK_SET_PLANTYPE|
MENUITEM|TASK_MANAGE_MAPS|
MENUITEM|TASK_MAINTAIN_POI|
MENUITEM|TASK_PAGE8|
MENUPAGE|TASK_PAGE8|Preferences 4 of 5|
MENUITEM|TASK_SET_NAME_DISPLAY|
MENUITEM|TASK_SET_KEYBOARD_SIZE|"keyboard.bmp"|"Keyboard"|
MENUITEM|TASK_SET_STATUS|
MENUITEM|TASK_SET_COLOR_SCHEMES|
MENUITEM|TASK_SET_BRIGHTNESS|
MENUITEM|TASK_PAGE9|
MENUPAGE|TASK_PAGE9|Preferences 5 of 5|
MENUITEM|TASK_RESET_SETTINGS|
MENUITEM|TASK_LEFTHANDED|
MENUITEM|TASK_SWITCH_TIPS|
MENUITEM|TASK_SET_DIST_UNITS|
MENUITEM|TASK_SET_LANGUAGE|
MENUITEM|TASK_PAGE5|