I am trying to configure roles and permissions for Reporting and I basically cannot. It took me a while of debugging to figure out, that I need permission for DELTE on entity report$DataSet. In the Role Editor I cannot add DELETE op for this entity. There is only read/update - I guess as it is a metaclass - but then it should not be demanded.
I guess the workaround is to add it directly to DB, but that is quiet ugly.