The worksheet is only accessible when using the TurboTax desktop editions in Forms mode.
To view the complete tax return including worksheets using the TurboTax online editions you would need to pay the TurboTax account fees before filing the tax return.
Click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return. Choose the option Include government and TurboTax worksheets