new UndoSelectedContextModificationsUIAction();
undoContextModificationAction.setViewComponent(this);
undoSelectedModificationsButton = prepareButton(undoContextModificationAction, GUIConstants.UNDO_LAST_CHANGE_BUTTON_TOOLTIP,
GUIConstants.UNDO_LAST_CHANGE_BUTTON_TEXT);
UndoAllContextModificationsUIAction undoAllContextModificationsAction =
new UndoAllContextModificationsUIAction();
undoAllContextModificationsAction.setViewComponent(this);
undoAllModificationsButton = prepareButton(undoAllContextModificationsAction, GUIConstants.UNDO_ALL_CHANGES_BUTTON_TOOLTIP,
GUIConstants.UNDO_ALL_CHANGES_BUTTON_TEXT);
debugToolBar = new JToolBar();
debugToolBar.add(undoSelectedModificationsButton);
debugToolBar.add(undoAllModificationsButton);