To complete the room, now you will merge some pre-built elements into the scene. These are the windows, a fireplace, and a door. They include the wall portions that are above and underneath them. The file also includes floors and ceilings for the hallway and kitchen. Another scene file provides the furniture.
open the file wt_material.max.
Add the windows, fireplace, and door:
Application menu, choose
Import
Merge.
Browse to the \scenes\interoperability\AutoCAD\ folder,
choose the file wt_door_windows.max, and
then click Open.

Merge adds the door, windows, and fireplace to the scene.

Import
Merge once again. In the \scenes\interoperability\AutoCAD\ folder,
choose wt_furniture.max, and
click Open.

3ds Max Design merges chairs and some decorative elements into the scene. (The merged scene also includes a sky dome, which supports distant scenery and snow falling, seen through the windows.)