|  | If you want to modify the name or the 3D attributes of a set of rooms, select these
                rooms and choose Plan > Modify rooms....
                The values of the attributes that are different from one room to another in the selected rooms set,
                will appear  blank  in the rooms pane. | 
          
            |  | Use the menu items of Plan > Modify text style submenu to change the size or the style of the
                texts displaying the name and the area of the selected rooms. | 
          
            |  | You may add a point to an existing room by placing the mouse cursor where the new point should be added, 
            then choosing Add point to room in the contextual menu of the plan. Similarly, you can delete the point 
            of a room under the mouse cursor by choosing Delete point from room in the contextual menu of the plan. | 
          
            |  | If you want to set different colors or textures on different parts of the floor of a same room, 
              create a room for each part and change their color or texture. | 
          
            |  | The elevation of the floor of a room is always  equal to the elevation of the level 
              the room belongs to (or 0 if no level was added to home). If the room isn't at the last level, the elevation 
              of the ceiling will be equal to the elevation + the height of the level it belongs to. Otherwise, the height of the 
              ceiling of a room is computed at each point of the room, and the height at each of these points is equal to the height 
              of the closest point of a wall. This allows to create the ceiling of a garret when you set different heights at the
              start and end points of sloping walls. When the Flat ceiling only option
              is selected, the ceiling is always flat and placed at the elevation of the highest wall in the level. 
              Unselect this option to try the ceiling of a garret (works only for rooms with a simple shape). | 
          
            |  | The  ceiling of a room is visible only from below, meaning you'll be able
                to see it only when Virtual visit is selected. This allows you to 
                always see the interior of the  edited home when Aerial
              view is selected, whether Display ceiling check box in room pane is selected or not. | 
          
            |  | If you want to
                disable the activated magnetism  on wall intersection points and for the angles of the lines you draw,  disable the magnetism 
                in the preferences pane or while  moving points, hold down the Alt key under Windows, 
                the cmd key under macOS or the Shift + Alt keys under Linux. | 
          
            |  | If the objects selected in the plan contain walls,  rooms, furniture,  dimensions, polylines and texts, all these
                objects will be moved with a drag and drop or the keyboard arrows. If you keep the Ctrl key (or under macOS, 
                the alt / option key) pressed while you drag and drop these objects, they will be duplicated. | 
          
            |  | The unit displayed by default for the area depends on your country. You may switch
                to Centimeter, Meter, Millimeter  or Inch in the preferences pane. If Inch is the chosen
            unit, the room areas will be displayed in square feet, otherwise they will be displayed in square meter. |