I do my taxes with both TaxAct and Turbotax. TaxAct lets you efile with attached pdf documents for exactly your situation, where you want to make an election. It is something I and others have asked Turbotax to implement for years, something TaxAct has had for over 10 years. I can't recommend Turbotax for this and other failings. (A bug I found two years ago and reported to TaxAct and Turbotax at the same time was fixed in TaxAct but not in Turbotax, for example).
