... ] := { |x| If( x == nil, aData[ 2, 1 ] * aData[ 3, 2 ], ; aData[ 2, 1 ] := x / aData[ 3, 2 ] ) } * New: function FW_ArrSum( aArray, nbCol, nStart, nCount ) --> nSum nbCol can be column number that is to be totalled. Or nbCol can be a codeblock. Codeblock is evaluated for every row, with parameters, ...