How to alter rmb menu

HI guys, When using the file manager under kde3 and you rmb on a file it comes up with a menu of things to do. ie cut,copy delete etc Does anyone know how you add to or alter that menu? Thanks, Glenn -- Brontosaurus Principle: Organizations can grow faster than their brains can manage them in relation to their environment and to their own physiology: when this occurs, they are an endangered species. -- Thomas K. Connellan