For the same i provided operation details VARST , OUTTP ADDZL accordingly we can use them and write a PCR go through those operations documentation in PE04 or PDSY transaction, You will get an idea accordingly you can only write a PCR and it updates ZL table, Same can be updated in clusters as well once they reach to ZL table.
You can refer report PT_BAL00 to see those details with the help of wage type.
Regards
Venkatesh