Can I delete a form 1099R in its entirety I’m doing this on my computer not online

Yes.  Go to the Form 1099-R section and you should see a list of all of the entries that have been made.  Click the trash can icon or the Delete button next to the one you want to delete.

I don’t see any of that… I’m using the Costco version on my laptop 

Please see the following steps to delete a Form 1099-R in TurboTax Desktop:

1. Click "Federal Taxes" on the top and select "Wages & Income"
2. Click "I'll choose what to work on"
3. Scroll down and click "Update" next to "IRA, 401(k), Pension Plan (1099-R)" 
4. You should see the "Your 1099-R Entries" screen with all you Form 1099-R listed
5. Click "Delete" next to the one you want to delete.

Ah Thxs a million!