Object related issues when connecting from 3ds max to d5

How do I break it down when everything is tied up into one object and I can’t control the material or

light?

Hello, for now D5 does not support reading model’s hierarchy directly, so the model is imported as one object. You can use material picker (i) to select materials. Also, please apply materials before importing the model into D5, so D5 can recognize different surfaces.