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+		SCOMBINE CURSOR KEYS
+
+a - Mark scaling ranges in overlap region for 'v' key
+b - Cancel scaling ranges
+c - Print cursor position
+d - Replace range of pixels by straight cursor line
+e - Replace range of pixels by linear interpolation from the endpoint pixels
+f - Start over from the first spectrum
+j - Fudge a point to vertical cursor value
+n - Go on to next spectrum
+o - Reset data for current spectrum to initial values
+p - Don't include current spectrum in combined image and go on to next spectrum
+q - Quit and combine remaining spectra noninteractively (no|yes|YES)
+s - Mark accumulation ranges in current spectrum
+t - Cancel accumulation ranges
+v - Shift overlap average of spectrum vertically to accumulated spectrum
+w - Window the graph using gtools commands
+x - Shift spectrum horizontally to cursor position
+y - Shift spectrum vertically to cursor position
+z - Shift spectrum vertically to accumulated spectrum
++ - Set additive scaling for 'v' key
+* - Set multiplicative scaling 
+? - This help page