Before the edo jutsu wasnt finished. Kabuto improved it...
Oro still has control in that he can choose to end Edo-tensei. Apart from that Hashi has broken the binding control. He can basically do as he wants as long as Oro doesn't end the jutsu.
yes he can end the jutsu, but when the souls are released, there is that free moment of control, and we saw madara take advantage of that moment to release himeslf when itachi made kabito stop edo-tensei. now, madara isnt even the creator of the jutsu, and he knew how to release himself, defnitely the tobirama as the creator of the jutsu and hasirama as the brother of the creator would probably know the same trick. it might prove a costly misake for oro if he decides to stop edo tensei without their permission, as am sure the 2nd is itching to snap oros' neckOro still has control in that he can choose to end Edo-tensei. Apart from that Hashi has broken the binding control. He can basically do as he wants as long as Oro doesn't end the jutsu.
Before the edo jutsu wasnt finished. Kabuto improved it...