IFC Export Classes by project
Currently the "IFC Export Classes" are set per user, while the "Export IFC Options" are set per project. It's very common to have several people doing exports in a given project, but the risk is always that someone's IFC Export Classes isn't set up right and you wind up exporting to little or too much from your model. It seems illogical to have these two legs of the IFC export process set up in different ways and is very confusing to users.