In Prosystemfx, use input Form D-8. As a description enter something like "Broker xyz account" in box 40, put the total losses in box 41, the total gains in box 42, and the program will enter them on Form 6781, Part I and calculate the 60/40 split. These are index options, which are treated as Section 1256 contracts, as opposed to writing a put or call on a specific stock. Those are the ones that get listed on Schedule D individually. I have never attached anything to mine and have not had questions, but now I suppose I should look at what should be attached.