Payroll Cluster Table Scrambling in TDMS 4.0

Hi Experts,

My client is implementing TDMS 4.0. Wherein they have requested us to scramble payroll amount (BETRG) field so that a masked amount appears on the payslip of the employees.

Would appreciate any suggestions on how the TDMS rule should be created to accommodate this functionality. And what table and field details need to added to the rule.

Thanks in Advance.