Debugging Payroll schema

Hi All,

I am not getting how to debug the Payroll schema, The standard process of /h debugger, I am not able to make any sense as this takes me to standard driver program and then it's like a big  ocean. I know where in Schema the calculation goes wrong but how to put a break point there, I tried putting function BREAK in schema but was unsuccessful in that as it was expecting parameter to enter. Appreciate, If someone please help me, I want to urgently solve few things and not able to figure how to do it ..

Thanks

Moh.