Step 1: Create Room structure.
Room function structure:
Example on room structure can be building, levels and type of room.
Structure can be created manually or imported together with the room from model or Excel-file:
Read more about creating Room structure:
Manually: Create and Edit Room Function Structure
Import from Revit: Import Revit Rooms or Spaces to dRofus
Import from ArchiCAD: Import ArchiCAD Zones
Import from IFC: Import Rooms from IFC
Import from Excel: Import and Update Rooms from MS Excel
Room Groups, Classification and Status :
Classification, status and groups can also be used to structure rooms. Read more: Room Groups, Classification and Status