Unfortunately, if you are using TurboTax Online, there is no ability to edit the actual CRA forms. You can only see the forms by printing or downloading the PDF archive of your return. This FAQ tells you how to save/print a copy of your tax return in TurboTax Online: https://turbotax.community.intuit.ca/community/tax-return-print-save/help/in-the-online-edition-of-t...
