Avada Postcards can use multiple custom post types by changing the query arg

hhdev-avada-add-cpt-to-postcard.php

<?php
// used on postcard blocks for Avada theme
// use the hook fusion_post_cards_shortcode_query_args to change to multiple post types on the postcard
// -----------------------------
// change the number 75012 in fusion_is_post_card to match the required ID of the post card!
// also change the cpt names as required
// place this snippet in functions.php of child theme or use a code snippet plugin to add it
// -----------------------------

function hhdev_my_post_card_add_cpt( $query_args ) {
  
 if(fusion_is_post_card(75012)) $query_args['post_type'] = array('book','store','message');
 return $query_args;
 
}
add_filter( 'fusion_post_cards_shortcode_query_args', 'hhdev_my_post_card_add_cpt', 10 );