Change or translate text strings on the administrative PMPro Members List page.

pmpro-memberslist-text-change.php

<?php
/**
 * Change or translate text for the Members List page.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_memberslist_text_change( $translated_text, $original_text, $domain ) {
	global $pagenow;

	if ( 'paid-memberships-pro' === $domain && 'admin.php' === $pagenow && ! empty( $_REQUEST['page'] ) && 'pmpro-memberslist' === $_REQUEST['page'] ) {

		switch ( $original_text ) {
			case 'Never':
				$translated_text = 'Auto-Renew';
				break;
		}
	}

	return $translated_text;
}
add_filter( 'gettext', 'my_pmpro_memberslist_text_change', 10, 3 );