Set TimeSlips Payroll Income using C# .NET SDK

Hello Friends,

I am using SAGE 2019.2 SDK for importing time slips from my application.

In sage, when I click on "Payroll Income ", its showing below payroll Items and I think, its coming from table "tCompPy5"

I would like to do same using .NET SDK and I think, need to store into  "tTSLine" and its seem storing into "nPayRate" but If I am assigning "tCompPy5", its not working.

Please any suggest how I can add "Payroll Income" items using .NET SDK?

Thanks in advance.