How do I see how the capital losses were calculated for a deceased person? The numbers make no sense and I can't get a schedule 3 to review?

You can see a detailed summary of the return in the online edition of TurboTax by following the instructions on this TurboTax FAQ: How can I see a detailed summary of my return in TurboTax Online?

You can also see the actual CRA forms that make up the return by saving/printing your return. This TurboTax FAQ tells you how to save/print a copy of a tax return in TurboTax Online: How do I print/save a copy of my return in TurboTax Online?