how to make rotating door

i whant to make a ordinary mesh to work as a ordinary door to be opend 170 deg but blitz seems to place the center always in the middle of the object what ever i do even if i move it in 3dmax the center still is in the middle when i whant it in the left corrner or left edge

Are you sure? Blitz doesn't centre the origin of loaded meshes, AFAIK. Maybe it's something the exporter in your modeller is doing!?

As a last resort, you can always use PositionMesh/FitMesh to re-position the origin to the left side of your door.