--https://www.youtube.com/watch?v=4jCtGRPNDtM
selection.SelectAll();
num_segments = selection.GetCount();
selection.DeselectAll();
for first_segment_index = 1, num_segments do
for second_segment_index = first_segment_index, num_segments do
band.AddBetweenSegments(first_segment_index, second_segment_index);
end
end