The app will raise the lowest point of your model to be inline with your selected horizontal plane.
You can use the camera of your device to view all aspects of your model when you display it to a size that fits on your table.
If you wish to display a building life size then you will have to allow the app to align the selected plane with the building level.
To achieve this:
a) Double tap the screen to activate the zoom and rotation slider.
b) Double tap the screen again to show the level correction and tolerance dialog.
c) Tap the level correction field and set it to the required value.
d) Optionally tap the tolerance field to inform the app the max difference in model item height that should be treated as a change in model level. (The default setting is 300mm, which is the average staircase step height).
If you’ve set the values correctly, every floor level change causes the new level to be temporarily highlighted with a red color.
If you overlay your model with a life example then you should use this option to initialize the floor level and then set the tolerance to 0 to avoid the app doing a double level correction.