... from the following:- Full screen display- Split screen with mid-water expansion- Split screen with bottom expansionA-scope ... Screen splitting modesVertical (default) or horizontal (optional) 5. Basic rangeM: 2.5, 5, 10, 15, 20, 30, 40, 50, ... 80, 100, 150, 200, 300, 500, 1000FM: 2.5, 5, 10, 15, 20, 30, 40, 50, 80, 100, ... 150, 200, 300, 500, 1000BR: 2.5, 5, 10, 15, 20, 30, 40, 50, 80, 100, ...