Menu: View -> Construction Stages -> Show Preliminary Inventory


 
This is an optional part of the display mode for construction stages.

 
If the switch is set, all those objects are shown for a construction stage to be displayed that would be regarded as 'preliminary' inventory following completion of said construction stage (no red/yellow colors; installed objects are shown in black; uninstalled objects are not visible.)

 
If the switch is not set, objects are filtered for the construction stage to be displayed, with elements to be installed being shown in red and objects to be uninstalled being shown in yellow.