[Plugin: Posts 2 Posts] Multiply Connections

Hello all,

I want to have a custom post type “series” be displayed both in Post and Page. Here is my original code.

function my_connection_types() {
    if ( !function_exists( 'p2p_register_connection_type' ) )
        return;

    global $my_connection_type;

    $my_connection_type = p2p_register_connection_type( array(
        'from' => 'post',
        'to' => 'series'
    ) );
}
add_action( 'init', 'my_connection_types', 100 );

The code provided on the Wiki (above one) can only create one connection “series and post”, how can I make it work with Page too? I tried the below and it does work for pages. The connection was established but I cannot use the code on the Wiki to display the “series” on post this time (while page works fine). Any help is greatly appreciated!

function my_connection_types() {
    // Make sure the Posts 2 Posts plugin is active.
    if ( !function_exists( 'p2p_register_connection_type' ) )
        return;

    // Keep a reference to the connection type; we'll need it later
    global $my_connection_type;

    $my_connection_type = p2p_register_connection_type( array(
        'from' => 'post',
        'to' => 'series'
    ) );
    $my_connection_type = p2p_register_connection_type( array(
        'from' => 'page',
        'to' => 'series'
    ) );
}
add_action( 'init', 'my_connection_types', 100 );

https://www.ads-software.com/extend/plugins/posts-to-posts/