Event Flow is a wonderfull plugin, thank for sharing it!!!
i see there are another similar post but i opened a new because this appear in v 6.5. in version 6.o this work well
note that i add add_post_type_support( 'event', 'ef_custom_statuses' ); to theme functions.php and this worked well:
- custom status are showed in the edit !!
but the problem is it isn't showed in the list of existing page/post/custom post type, when you select quickly edit and click in status selector
any idea will be apreciated!