Works for posts – what about pages and custom post types

Hiya,

You’re welcome.

Is there a quick way to expand this plugin so it will work for pages and custom post types (like events calendar)?

Quick and dirty way for make this:
update_user_option($user_ID, 'meta-box-order_page', $posts_widget_order, true);
I’m not sure about custom post type but try this one for events calendar.
update_user_option($user_ID, 'meta-box-order_events', $posts_widget_order, true);