How can I allow 8192 texture?

Hello,

I’m currently modeling a HD room with 2x 8192 textures.
The problem is that UE4 is rendering it with 2x 4096 textures.

I see that : Textures in Unreal Engine | Unreal Engine 5.1 Documentation

But I don’t know how and where to make the change.
Thank you if you can help :wink:

With the same .obj, here is what it looks like on Unity and UE :