The election for real estate professionals to aggregate their activities under IRC 469(c) (7) is not supported at this time.
However, you can paper-file your return and attach a statement to make the election.
Making the Election (Journal of Accountancy)
"A taxpayer makes the election by filing a statement with the taxpayer’s original income tax return for the tax year (Regs. Sec. 1.469-9(g)(3)). This statement should explicitly declare that the taxpayer is a qualifying taxpayer (i.e., the taxpayer meets the requirements to be a real estate professional) for the tax year and is making the election under Sec. 469(c)(7)(A). Once the election is made, it is binding for the tax year in which it is made and for all future years in which the taxpayer is a qualifying taxpayer, even if there are intervening years in which the taxpayer is not a qualifying taxpayer."