MouseEventMatcher.columnGroupHeaderLeftClick(SWT.NONE),
new ColumnGroupExpandCollapseAction());
uiBindingRegistry.registerKeyBinding(
new KeyEventMatcher(SWT.CTRL, 'g'),
new CreateColumnGroupAction());
uiBindingRegistry.registerKeyBinding(
new KeyEventMatcher(SWT.CTRL, 'u'), new UngroupColumnsAction());
}