Many features of the GPS III are menu driven. Each of the main pages has anoptions menu, allowing you to custom tailor the corresponding page to your prefer-ences and/or select special features which specifically relate to that page.To display the Map Page Options, press MENU (with the Map Page dis-played).The following options are available:Data Fields Off— allows you to select between a full-screen map display or thedefault map display with data window. If the data fields are off, ‘Data Fields On’will appear as an option instead.To turn the data fields off (or on), highlight ‘Data Fields Off’ (or ‘DataFields On’) and press ENTER.Change Fields— allows you to choose the data displayed on four user-selectabledata fields. There are twenty-four available data types, including Average (AVG)Speed, Bearing, Distance, ETA to Destination (DEST), Speed, Time to Destination(DEST), Track and a Trip Odometer. See page 85 for descriptions of navigationterms.To change a data field:1. Highlight ‘Change Fields’ and press ENTER.2. Highlight the data field you wish to change and press ENTER.3. Select the type of data you want to appear on this field and press ENTER.Measure Dist— allows you to measure the bearing and distance between anytwo points on the map display.A full-screen map, without thedata fields, is available byselecting the ‘Data Fields Off’option.When using the ‘MeasureDist’ option, the arrowincludes an ‘Enter Reference’prompt and the arrow posi-tion appears at the top of themap display. 35REFERENCEMap Page Options