Order shipped by which driver[hook for woocoomerce order staus changed and popup in admin panel ]

Hi is it possible to make an extra field in backend, when orders are selected and marked as shipped then an extra field come and where i can select drivers who are responsible for this shipped order .Is that possible? is there any hook available ?

http://ift.tt/1aEdeLe

Shipped is a custom order status we created.

my need is when a order marked as shipped then need to appear extra input text or select box where i can select driver name**(user with role is driver )** and save it .

Can i do it using wc_order_statuses filter ? please help to do this .

i know about custom post meta and it's working .But i want to update the value only when order status changed to shipped . Is there any hook available for this .When my staff marked 5,6 order marked as shipped in bulk edit section then a popup need to appear and it say select driver,. How to do this

via Chebli Mohamed