Transforming existing assets to real world coordinates

Thanks for your suggestions on this. I’ll file all the incantations and spells away for possible future use.
Fortunately, our area is only a few kilometers square and using plane projections so all assets will have the same ground plane. As you can see, I’m new to Unreal Engine and its capabilities so I didn’t know if one were able to create additional coordinate systems similar to CAD programs. A new coordinate system located and rotated to the correct position would also provide usable location information for the assets without actually moving them. It seems you suggest this isn’t possible though, so I’ll have to look into how to export the asset locations, correct the coordinates, and then reimport them into the model. Any suggestions on where I might look for explanations on how to do that?
Thanks