Free Hero Mesh

(<label> <code...>)
  Define a data column. The SQL name of the data column will be that of
  the label name, preceded by a underscore, and some characters will be
  stripped out.

(<string> <label> <width> <format> <color>)
  Defines a display column. The <label> is the name of the data column.
  The <width> is a number 1 to 255 or it can be * for fill width. The
  <format> is a string of one or two characters; see the below list of
  possible formats. The <color> is the text colour, and is optional; it
  can be a number from 1 to 255, or it can be a sequence of parenthesized
  pairs of a number (-127 to +127) and colour, to mean use those colour if
  the value of this column is in range. It uses the colour for all values
  up to and including the specified number, so the numbers should be listed
  in ascending order, in order to work. The <string> is the heading; it is
  not allowed to include control characters, nor can it include graphic
  characters with code number less than 32.
  The <width> is a number 1 to 255 or it can be * for fill width; only
  the last column is allowed to be fill width (although it is also OK if
  no colums are fill width). The <format> is a string of exactly one or
  two characters; see the below list of possible formats. The <color> is
  the text colour, and is optional; it can be a number from 1 to 255, or
  it can be a sequence of parenthesized pairs of a number (-127 to +127)
  and colour, to mean use those colour if the value of this column is
  in range. It uses the colour for all values up to and including the
  specified number, so the numbers should be listed in ascending order,
  in order to work. The <string> is the heading; it is not allowed to
  include control characters, nor can it include graphic characters with
  code number less than 32.

(<local> <type> <code...>)
  Defines a aggregate calculation. The <local> is the name of the aggregate
  to be referred by other blocks. The <type> is the type of aggregate,
  which can be one of: + for the sum, min for the least value (unsigned),
  max for the greatest value (unsigned), ,min for the least value (signed),
  and ,max for the greatest value (signed).