filter

jetpack_copy_post_post_types

Fires when determining if the “Copy” row action should be made available. Allows overriding supported post types.

Parameters

$post
WP_Post

Post object of current post in listing.

Post
array

Post types supported by default.

Changelog

How to use this hook

See “How to use actions and filters to customize Jetpack”.

Notes

You can add support for the Copy Post feature to your own Custom Post Type like so:
function jetpackcom_add_myposttype_support_copy_post( $post_types ) {
    $post_types[] = 'myposttype';
    return $post_types;
}
add_filter( 'jetpack_copy_post_post_types', 'jetpackcom_add_myposttype_support_copy_post' );