How can I create parameters and set default values for a jobset that is based on a standard job

I am working on configuring a jobset that is based on a standard job of type ‘cjob’. In this setup, the jobset inherits parameters from its underlying concurrent program. My goal is to create parameters for the jobset and set default values for them, ensuring that inherited program parameters can be pre-populated with specific defaults. Additionally, I am looking to understand how program-associated parameters—those originally defined in the concurrent program—can be set or overridden with default values directly at the jobset level.