You will report this under Investment sales. The easiest way to access that area of your return, type "investment sales" into the search box and click the "Jump to" link in the search results. Answer "Yes" on the screen that populates and "No" on the following screen. You'll then "Choose the type of investment sold" from the list (if you don't see your specific category, choose "Everything Else" at the bottom of the list). Then following the program prompts to complete your entry.
Alternatively, you can switch to the Forms view (Ctrl+2), type "Form 8949" into the Open Form search box, highlight the form and click "Open Form". You can then enter the information directly onto the form.