Field help (TYPPST) 

Ifthe two types (picking or reserve) are keyed in, the zone Position is accessible.It indicates if the user would like to see these data (the type) in line or incolumn,  that will correspond during thegraphical generation  of data theabscissa and the ordinate. The value should start by X for the line(abscissa orwidth) and Y for the column(ordinate or depth).