Yes, if aggregated in the CSV file. But why would you do that ?.
If you had one SELL in 2021, enter the transaction detail manually. If multiple lots, Date Acquired is "various".
If you had multiple SELLs in 2021, enter each manually and then no mailing is necessary. (TurboTax will attach Form 8949 for you.)
The summary option aka mail-in option is for a very large number of transactions.
