If you need to enter a 1099B you need to upgrade to Premium.
Enter a 1099 B under
Federal Taxes on left or Personal (Home & Business)
Wages & Income (Personal Income)
Then scroll down to Investment Income
Then Stocks, Cryptocurrency, Mutual Funds, Bonds, Other (1099-B) - click Start
Then click +Add Investments at the bottom
Then Import your info OR Skip Import at the bottom
Then pick box Stocks, Bonds, Mutual Funds - then Continue
Enter the bank or broker
Answer some general questions and Continue
Then Continue a couple more screens and you finally get to the 1099B entry screen.