While not 100% supported yet, DJI will be rolling it out at some point correct? I was surprised they were not from the get go since they are used in the promo shots.

Hi Lawless, I have replied your post in another thread: https://forum.dji.com/thread-152160-1-1.html The USB Shutter control and more features are under developing, we will release them once they are ready, appreciate your patience and sorry for the inconvenience caused at this moment.