Inbox: Drag Recipients Between Address Fields

Another feature that people have been requesting in Inbox has seemingly arrived. While playing around with the address fields, I have discovered that it is now possible to drag and drop recipients between the To:, CC, and BCC fields. 

This is possible both in newly composed messages as well as in replies. However when replying, you must pop-out the reply to be able to move the recipients from one field to the other. 

This is so much easier to show users with a video. So here you go: