a9: Focus Point Wrap-Around
G button U A Custom Settings menu
Choose whether focus-point selection “wraps around” from one edge of the display to another. If [ON] is selected, focus-point selection will “wrap around” from top to bottom, bottom to top, right to left, and left to right, so that, for example, pressing 2 when a focus point at the right edge of the display is highlighted selects the corresponding point at the left edge.