We give you the long-awaited plugin: IFC SPLIT!
This tool allows you to save selected (visible / active) elements of the model to a new IFC file. This functionality makes it easier to work on large models, from which you can extract selected elements and work on them. Additional tools of this plugin allow hiding all non-facade elements (Show only facades), as well as exporting all storeys of the model to separate IFC files (Separate storeys).
Export of the selected element of a model to the new IFC file