You are able to preview the 1040 to see if the capital gains were included.
To preview the 1040 in the Online versions:
Sign into your account and your return. Click “Take me to my return” and “Pick up where I
left off”
Click “Tax Tools” on bottom of the left side-bar
Click “Tools” from the drop-down list
Click “View Tax
Summary” on the Tools Center screen
Click “Preview my 1040” which now appears on the left
side-bar
Click “Back” on the left side-bar to escape