Any changes in the fields of permanent address reflects in temporary address sub infotype in ESS. How to tackle this through PCD preview?

Hi all,

My requirement is to make the country field of permanent address in ESS to read only, while the country field of temporary address should be editable. But whenever I change the property of country field in permanent address, it reflects in temporary address also. Any suggestions how to do this through portal PCD preview?

regards,

Ajeeth