Create door or window cutouts by extruding through wall thickness
Cut an opening for a door or window in a wall by drawing the cut area and extruding it through the wall thickness.
To cut an opening for a door or window in a wall, select the wall surface and open the tiling and cutting tool.
Use the add command to draw a rectangle or line defining the cut area and apply it.
Then select the extrude option and set a depth value greater than the wall's thickness (for example 150) to complete the cut through the wall.