The spectrum window shows all
displayed spectra. The Current
column of buttons ("C")
allows one to alter the current spectra. Extracted spectra will
be added to this slot. When altering the display properties of
the spectra, this spectrum will the the one that is affected. The
column of buttons ("P") allows one to change which
loaded spectra are plotted. When the Show
clicked, a new display of spectrum properties is displayed. This
button then changes to Hide
to hide these properties.
The plot window shows the results of
the interactive plots, as well as the histograms of the region
pixel values. As I don't find this very useful, I haven't put
much work into it.