Intensity Windows consist of a set of up to 10 minimum and maximum intensity levels. Units are the same as in input files (counts/s usually). Intensity windows must be ordered with increasing intensity and can be specified independently for the intensity of (i) Bins, (ii) Newbins, (iii) Intervals, for each of the series which is being analysed. Note that the ``intensity" of an interval is its average intensity. Only those Bins, Newbins, and Intervals whose intensity is within the corresponding specified minimum and maximum intensities will be accepted. Intensity windows in newbins can be used in conjunction with ``Special Newbin Windows".