input source definition dataset true input event list dataset true number of order selection regions per source maxorder in [1:] vertices per node across spatial regions spatialres in [2:] vertices per node across order regions orderres in [2:] percent of lower cross-dispersion PSF included xpsfbelow in [0:100] percent of upper cross-dispersion PSF included xpsfabove in [0:100] percent of cross-dispersion PSF excluded from background xpsfexcl in [0:100] percent of pulse-height distribution included pdistincl in [0:100] select which sources to process true select which sources to exclude from background true update the source selection flags mark updated regions as protected Extended regions selected background selected PI cutoff switch Excluded PI region below this value (eV). Dispersion binning method