The sale will show up on 8949 but I'm kinda curious where you are reporting a purchase on the tax return.
Under Income > Depositions (Sch D, etc.) > Schedule D/4797/etc., you'd find the quick entry screen. Click on the Details button on the far right, the detailed input screen for that line item will open. Enter all the relevant details for the sale as usual, then click on the Sale of Home tab for entries relating to §121, business use, etc.
Still an AllStar