MES: How to discount operator's breaktime from Clock-In/Clock-Out time

Hi,

We have a requirement of discounting predefined operator's break time (like Lunch time of 30 mins) per shift when Operator works on the Job Operation.

We are using MES to capture & charge Resource transactions.. Each Operator will Clock-In and Clock-Out for their Job Operations in MES but the break time has to be discounted from their charge hours automatically. Let me know how to map this requirement in WIP/MES modules.

Thanks in Advance

Kamaraj