By checking this option in "BIMserver.center" > "Share" or "Export" > "IFC", new unique identifiers (GUIDs) will be generated for the structural elements and therefore they will be considered as new project elements.
This option is useful in certain cases, such as when modelling a project with identical structures. Each element can now be generated with its own globally unique identifier (GUID) for each independent structure.
This allows users to draw each structural element independently within the project and avoid having to redo the job.