[GREG1\]AXIS NAME /LOCATION X Y Len
By default, each axis (XLow, XUp, YLeft, YRight) is drawn by connecting
the appropriate corners of the current box location. For example, XLow
draws an axis from [BOX_XMIN,BOX_YMIN] to [BOX_XMAX,BOX_YMIN]. This can
be overriden with the option /LOCATION by giving custom starting point
and axis length (in paper coordinates).