- Load the duplex model.
- Zoom model to life size.
- Adjust floor to ground level. (starts at -1550 set it to 0)
- Find the bathroom in the building.
- Tap the wall behind toilet and washbasin.
(note: you may have to tap a second time if the first removed the display of zoom and rotation sliders) - Select the option to modify the wall.
- Select transparency.
(note: the transparency slider appears at the bottom of the screen) - Set the required transparency to see the plumbing behind the wall.