We're sorry for your loss. You will start a new return and continue and choose the following:

You will click on continue, and the next page is where you will enter the DOD. 

Thank you for choosing TurboTax.

Thank you for your reply but it is someone who I already have done the return for in prior years-I started in on their return by rolling forward last year's and downloaded the slips.  Can I access the DOD section for that return or do I have to do a brand new return, redo the address and other details and then redownload the slips in the brand new return?

Unfortunately, you will have to start over.