Replaces label for RSVP tickets in the radio button selector in the Community Tickets front-end "Add ticket" interface

change_rsvp_label_CT.php

<?php

function change_rsvp_label() { ?>
     
    <script>
 
    jQuery(document).ready( function ( ){
 
        jQuery('input[value="Tribe__Tickets__RSVP"]').next().html('Free Tickets');
 
    });
 
    </script>
 
    <?php
}

add_action('wp_head', 'change_rsvp_label');