Format -

   LINE NUMBER IS { line-num [ON NEXT PAGE] }
                  { PLUS line-num-plus      }

1  –  line-num

  is a nonnegative integer.  Line-num represents an absolute line
  number on a logical page and establishes a print line for a Report
  Writer report group.

2  –  line-num-plus

  is a positive integer.  Line-num-plus represents a relative line
  number on a logical page and establishes a print line for a Report
  Writer report group.