For result spectra (NMR, UV/Vis, etc.) or result data plots (IRC, Scan, etc.), the spectra/plot may be inverted along the horizontal and/or vertical axes.  For a set of spectra/plots, each can be adjusted independently.  To invert:

• On the spectrum/plot of interest, click the right mouse button to bring up its context menu
   
• From the context menu, select Properties... at the bottom to bring up the Plot Properties Dialog
   
• In the Y-Axis (top) box or the X-Axis (bottom) box, click the left mouse button on the check box next to the words invert axis to toggle this option
   
• To accept the change and exit the Plot Properties Dialog, click the left mouse button on the okay button