you don't do any overrides.
Please look at schedule D lines 2, 3, 9, 10.
You tell TurboTax what Box you want to assign and TurboTax uses the corresponding subtotal line.
There is no detail reporting exception for those Box Categories.
When you e-File Form 8949 will be submitted but it won't have any details.
If you use TurboTax Online, the program will ask you for PDF file of your 1099-B.
