a5: Store Points by Orientation
G button UA Custom Settings menu
Choose whether separate focus points can be selected for “wide” (landscape) orientation, for “tall” (portrait) orientation with the camera rotated 90° clockwise, and for “tall” orientation with the camera rotated 90° counterclockwise.
Select [Off] to use the same focus point regardless of camera orientation.
Select [Focus point] to enable separate focus-point selection. To enable separate selection of both the focus point and AF-area mode, choose [Focus point and AF-area mode].