How to - Add New Search Criteria to Opportunity Search screen?

Experts,

How do we add a new search criteria to the Opportunity Search?

This search criteria is not available in Displayed and Available Search Criteria.

I want to add search by 'State/Region' in the Opportunity Search screen, but it it not available in Available Search Criteria.

How can i do this?

Any help would be appreciated.

Thanks,

Abhinav