Hi,
See this thread : QStackedWidget-and-QTabWidget-Structure-Advice.

It does what you want I think : you have different forms created somehow, and you want each to show in a page of a tab sheet.

Note that for simple tabs, you can just add all your widgets to the QTabWidget that is returned by addTab. Or just use Qt Designer, define some tab pages, and drag the widgets onto the tab pages.

Best regards,
Marc