Hi, Aakash.
Thank you for your quick reply.
I appreciate your considering it positively.
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I will write this kind of code at function.php until your update to this issue.
function my_func_name() {
if( is_singular('shortcoder_editor') ){
global $wp_query;
$wp_query->set_404();
status_header(404);
}
}
add_action( 'template_redirect', 'my_func_name' );
※You need know you will not be able to access my web-page created by CPT(shortcoder_editor).
I will wait looking forward to your update!