The cursor has a horizontal position with an elevation record (in meter above sea level) corresponding to intersection of the two dotted lines that appear after a click on the map. The Elevation grid (when selected in View menu) shows a 5x5 array of elevations surrounding the horizontal position that is shown in latitude/longitude coordinates, just below the Elevation grid.

To move the cursor, click anywhere on a map picture or click on any cell of the Elevation grid.

More information about the cursor in 'Quick reference > Selections using the mouse'