Get Pro Version'; return $links; } add_filter( 'plugin_action_links_' . A_RCP_BASENAME, 'aps_pro_version_link' ); /** * Upgrade & Support submenu pages */ function adl_rec_post_upgrade_support_submenu_pages() { add_submenu_page( 'edit.php?post_type=adl_rec_post', __('Upgrade to Pro', A_RCP_TEXTDOMAIN), __('Unlock More', A_RCP_TEXTDOMAIN), 'manage_options', 'upgrade', 'adl_rec_post_upgrade_callback' ); } add_action('admin_menu', 'adl_rec_post_upgrade_support_submenu_pages'); function adl_rec_post_upgrade_callback( ){ include('a-rcp-upgrade.php'); }