You can put many doors into the same sequence if that’s what you’re asking but you would need to reanimate each of the doors. If you’re asking if there’s a way to animate one door and reuse that animation on the other doors it’s not that simple.
I asked a similar question recently about duplicating animations around a map.
https://forums.unrealengine.com/t/can-you-duplicate-and-move-objects-in-a-sequence/