code: public boolean canMove(NsType nsType) {
  		boolean rv;
  		switch(nsType) {
  			case DOT:
  			case ROOT:
  			case COMPANY:
  			case UNKNOWN:
  				rv = false;
  				break;
  			default:
  				rv = true;
  		}
  		return rv;
  	}
docs: canMove
  Which Types can be moved
  @param nsType
  @return