Can I change country-switcher widget option output?

I would like the WPBOC Country Switcher Widget option output showing the currency or pricing zone name instead of the countries. I tried to override it in /woocommerce-product-price-based-on-countries/country-selector.php with function wcpbc_get_zone_by_country( $country = ” ) but it does not work, can I know how can I get override the country option to currency option or pricing zone name option? I hopefully want to get the two ways so I can change anytime, requesting help!

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