I would like to confirm that if a WT have all NUM, AMT and RTE are zero:
1) The WT will not add in the Output Table although I ADDWT
2) I can just skip to ADDWT, because while the WT not exist, it will count as zero in payroll calculation when referenced
1 - Yes, if the WT has no rate (RTE), number (NUM) or amount (AMT), it will not be transfered into the Results Table (RT), but it can if it has a value in one of these three fields.
2 - Yes, if you made sure that the WT has no rate, number or amount, you could terminate your PCR without operation ADDWT.