How to change 3DTile models position?

CesiumJS
1 
hi,3dtile content is like this:

 "content": {
    "boundingVolume": {
      "region": [
        -1.2418882438584018,
        0.7395016240301894,
        -1.2415422846940714,
        0.7396461198389616,
        0,
        19.4
      ]
    },
    "url": "2/0/0.b3dm"
  }

how to define the position of the model?  is the region property control the position? or can i change the model position manual？
2

Hi,

Region defines the bounding volume, i.e., the volume that contains the geometry. The geometry itself defines its position.

We are also adding a transform property so a tile’s content/geometry can be defined in a local coordinate system, see https://github.com/AnalyticalGraphicsInc/cesium/pull/4130

Patrick