I think it would be useful to have classification as option to filter elements in Element ID manager, say we have some doors and windows that will be manufactured by window contractor and we want to rename ID's of mixed doors and windows at once i think using classification as criteria we could easily do it.
Gezim Radoniqi | Architect | BIM Manager @ 4MGroup
ArchiCAD user since version 6
AMD Ryzen 3950X CPU, 64 GB RAM, NVidia RTX 3060 12GB