QTY - shows quantity
SEX - status excluded. Calculate the balance of all invoice items except for the ones with these status, the status items can be a comma separated list. Example: SIN status1,status2,status4 will not show items with this status.
SIN - status included. Calculate the balance of all invoice items with matching status, the status items can be a comma separated list. Example: SEX status1,status2,status4 will only show items with this status.
STA- shows staus
VAT - VAT summary
Connect the variables with an underscore.