Recommend reading Room module IFC Options before moving forward.
...
The building structure of the IFC model are displayed in the IFC tab within the navigation pane. This diagram consists of a project level (IFCProject) and possibly one or more of: Area (IFCSite), Building (IFCBuilding) and floors (IFCBuldingStorey). There may be rooms connected to all levels of this structure. Unlike the programmed functions, rooms are not displayed that are located under the level selected in the tree in the list on the right when you select the level.
...
Navigation panel. When IFC is connected you will see an additional tab called ‘IFC’ which will contain the models spatial structure. You can chose to navigate room based on functional location, room groups or spatial structure.
In the BIM-tab in the ribbon menu, the icon Rooms Match opens a window displaying lists of rooms and “Link status” between the model and dRofus.
.png?version=1&modificationDate=1689247860318&cacheVersion=1&api=v2)
Displays list of rooms depending on what you have selected in the navigation panel. If you navigate by spatial structure in the IFC-tab, rooms that only exist in the model will also be displayed.
This window displays all properties (object properties and property sets) related to the IFC object marked either in the tree or list. There are also buttons for synchronizing the active object, viewing the object and details, and change viewing settings.The list displays rooms that are connected to the selected function in dRofus beneath a level in the building structure in the model. The list can show rooms in both the room program (dRofus) and in the model, only in the model and only in dRofus:
3D viewing window
Occurrence Match- Shows a comparison of Occurrences in dRofus and in the model
...