Spoilers if you didn't see episode 473 of the anime yet:
In anime episode 473, Kakashi uses Obito's eyes to create Susanoo. But Obito's eyes were not Eternal Mangekyou. Previously, he had Rinnegan which he has borrowed in addition to one of his own eyes, and that's why he could do lots of stuff.
Note: this is not the same question as the closure says! Eternal Mangekyou is when someone from Uchiha gives his Mangekyou to to someone dear then it becomes eternal and the powers will be activated.