Sorry, but this still not work as the step by step only allows you to enter a sale using a 1099-B form. Nowhere is the option to enter a sale without a 1099-B form. However as suggested by another user, the ONLY way to do this with Premium 2023 is to just hit the enter more sales, skip import, stocks bonds mutual funds continue. When there, skip import. Then the page asks for what bank or brokerage is on your 1099. Just enter your transaction in the bank or brokerage field, for example sell XXX shares of XYZ. Then voila, everything now makes sense for an ISO sale.
