A tap on any object will cause the app to display a dialog with information about it and the option to modify it.
Note that a first tap on an object may cause the rotate and zoom slider to disappear. A subsequent tap will then select the object. (a double tap will re-activate the rotate and zoom slider).
For this exercise we use the Duplex model stored on the NZ repository.
This model comes stored in a zip file that contains several IFC files.
Note that selecting the zip file in the app causes all IFC files to be loaded an overlaid.
(Be aware that the zip file contains two copies of the building, I opted to remove one of these two).