main.setBorder(new TitledBorder("Contents"));
JTable contentsTable = new JTable(new ContentsTableModel(viewContext.get(ToolWindowManager.class)));
contentsTable.getTableHeader().setReorderingAllowed(false);
contentsTable.getSelectionModel().addListSelectionListener(
new ContextPutTableListSelectionListener(viewContext, Content.class, contentsTable, -1)
);
JCheckBox booleanEditor = new JCheckBox();
booleanEditor.setHorizontalAlignment(SwingConstants.CENTER);
for (int i = 1; i < 6; i++) {