The Reverse X-Axis Orientation command simply toggles the displayed
x-axis direction. It switches the x-axis of the
displayed spectrum from increasing x-values to decreasing values or vice
versa. This useful to quickly switch the spectrum orientation which is
preset for certain spectra types. The destination orientation is indicated
as part of the menu command (left to right or right to left).
The Reverse X-Axis Orientation command is applied as follows: