Уже нашёл. Qt Assistant рулит. Мне стыдно за ламерский вопрос
> 1. Create a QTabWidget.
> 2. Create a QWidget for each of the pages in the tab dialog, insert children into it, set up geometry management for it and use addTab() (or insertTab()) to set up a tab and keyboard accelerator for it.
> 3. Connect to the signals and slots.