Worked on the IfcOpenShell/IfcOpenShell repository to refactor the BIM Grid Add operator, shifting its namespace from mesh.add_grid to bim.add_grid to better align with BIM context and module boundaries. This update involved modifying the Python codebase, updating the user interface, and revising associated tests to ensure the new namespace was fully integrated and regression-free. The changes improved API clarity and module cohesion, reducing confusion for users and developers working with BIM workflows. By focusing on BIM development, UI development, and testing, the work enhanced maintainability and set a clearer foundation for future feature expansion within the project.