Click on the Output button or on the Next button on the Spectral Grid page:
Photon Energies:
Click Add, enter 3140 (photon energy in the vicinity of Ar
He alpha), and click OK.
Click Add, enter 3318 (photon energy in the vicinity of Ar
Ly alpha), and click OK.
Spectra: For Spacially resolve spectrum, choose Spatially resolve horizontal from the drop down menu. Note that for spherically symmetric systems, spectra resolved in horizontal and vertical directions will be the same.