Changing frontend plugin text using gettext filter. Used for the Condo Owner's Association Demo at https://coa.pmproplugin.com/

my_coa_demo_pmpro_gettext_changes.php

<?php
function my_coa_demo_pmpro_gettext_changes( $translated_text, $text, $domain ) {
	if ( $domain == 'pmpro-shipping' ) {
		if ( $text == 'Shipping Address' ) {
			$translated_text = 'Mailing Address';
		}
	}
 
	return $translated_text;
}
add_filter( 'gettext', 'my_coa_demo_pmpro_gettext_changes', 10, 3 );