Level 2 Help for MSS

INP specifies the input data sets.  Up to 50 are allowed.

The SIZE parameter may be used when only a sub-region of each image is to
be concatenated; it has the format SIZE=(SL,SS,NL,NS), where the parameters
are starting line, starting sample, number of lines, and number of samples,
respectively.  SIZE=(1,1,10,10), for example, will cause MSS to only look
at the first ten samples of each of the first ten lines in each image, when
performing the concatenation. If NS is equal to the number of samples in the
first input file, NS from the SIZE parameter is not used; the actual number
of samples in each input file will be used instead.

INTEGER - Starting line (see SIZE)

INTEGER - Starting sample (see SIZE)

INTEGER - Number of lines (see SIZE)

INTEGER - Number of samples (see SIZE)