Stopping Tile shifting the origin of the model

When I import a model that has it’s origin in the middle into a tile set using Cesium ion the origin is shifted from the middle out it looks like a corner of the tile.

This unfortunately breaks some coordinate math mapping I have for placing things in a 3D scene relative to the original origin of the model.

Is there an option in cesium ion that would let me prevent this origin shift? If that’s not possible is there straight forward way to calculate the amount of the shift so that apply that as an offset to shift all my relative placements to the equivalent location in the tile.