Scene perf; perf = ((Scene) list.get(row)); perf.setPatch(p); fireTableRowsUpdated(row, row); }
list.set(row, new Scene(p)); fireTableRowsUpdated(row, row); }
	public void setPatchAt(Patch p, int row) {	    Scene perf;	    perf = ((Scene) list.get(row));	    perf.setPatch(p);	    fireTableRowsUpdated(row, row);	}