SECTION./CALI
PLOT/CALIBRATE [ord1,ord2] [plot]
	plot dispersion relation in echelle reduction
SECTION./ECHE
PLOT/ECHELLE frame [ord1,ord2]  [printer]
	plot extracted echelle orders.
SECTION./IDEN
PLOT/IDENTIFICATION frame [ord1,ord2]  [printer]
	plot line identifications in echelle reduction
SECTION./RESI
PLOT/RESIDUAL [ord1,ord2]
	plot dispersion residuals in echelle reduction
SECTION./SPECTRUM
PLOT/SPECTRUM  in  [start,end]
	plots a rebinned spectrum in wavelength range
