I tried this myself in an earlier version of TurboTax. That's why I said you can do it according to the IRS instructions.
You are using the current version of TurboTax.
Obviously, TurboTax support doesn't know how to do it. how hard can it be, unless the capability is removed
Your Box B,E gains/losses are treated the same as the otner Boxes.
@SN70
