[whpalmer4]

You need to tell it which row...

The following code will loop through all the rows and sum the values of the contents of the "ricarico" column, as an example.

tell application "OmniOutliner"
	tell front document
		set SumTotal to 0.0
		repeat with MyRow in every row
			set cellValue to value of cell "ricarico" of MyRow
			set SumTotal to SumTotal + cellValue
		end repeat
	end tell
end tell