About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
The old fashioned calculations are stored as a library part (suffix 'LIS') and can be modified by any ArchiCAD file / team member that has the library loaded. For this reason it many times is more usable than a schedule.