There is no Forms mode when using the TurboTax online editions. That option is only available when using the TurboTax desktop CD/Download editions.
However, you can view your Form 1040 plus Schedules 1, 2 and 3 at any time using the online editions. Click on Tax Tools on the left side of the online program screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.
