ses: Sorting by column

 
 4.3 Sorting by column
 =====================
 
 ‘C-c M-C-s’
      Sort the cells of a range using one of the columns
      (‘ses-sort-column’).  The rows (or partial rows if the range
      doesn’t include all columns) are rearranged so the chosen column
      will be in order.
 
 ‘[header-line mouse-2]’
      The easiest way to sort is to click mouse-2 on the chosen column’s
      header row (‘ses-sort-column-click’).
 
    The sort comparison uses ‘string<’, which works well for
 right-justified numbers and left-justified strings.
 
    With prefix arg, sort is in descending order.
 
    Rows are moved one at a time, with relocation of formulas.  This
 works well if formulas refer to other cells in their row, not so well
 for formulas that refer to other rows in the range or to cells outside
 the range.