Translations:BIM ingame tutorial/110/en

Another useful method is directly working on the intended plane. We can easily set the working plane to the top surface of the walls, which is where we want our slab. Selecting a face and pressing the working plane button sets the working plane to coincide with the selected face. Select the top face of the wall and set it as the current working plane. The placement of the grid moves to show the current working plane.