Field help (PROCOD1) 

Processing to carry out on the selected operation data: ? reset to zero (or to empty according to the type of data) ? constant (replaced by a constant for numerical data, by a value for alphanumerical data, by another local menu line for a local menu and by data for a table field) ? coefficient (multiplied by a numerical coefficient for numerical data) ? formula (formula applied, selected in the formulas table, to the selected data)