Default payroll based on selected position.

Summary

While creating the Job offer, customer want to default payroll based on selected position.

Content

I submitted this usecase and got an approval on "Assigned Payroll" Object

Action : Create and Edit Job Offer

Region : Payroll Info

Purpose : Default or Validate Payroll

When I tried to default the payroll name based on Position name, I could not find Attribute Payroll Name, what is the exact attribute to accomplish this requirement?