1099B entries in box 8,9,10,11. How do I enter these?

to enter 1256 results only the amount on line 11 has to be entered.

If you had a loss, enter it as a positive number in the loss box, otherwise enter it in the gain box

You can use "futures"  as "description".

To enter the information in Form 1099-B click on forms on the left top side of your screen then click open form in the top center of your screen.

Enter 1099 in the search box scroll down and select Form 1099-B worksheet click open form you will now have Form 1099-B Worksheet on your screen and you can enter your information boxes 8,9,10,11 into the form