One long term capital loss is not added in with my total capital gains and losses. Can I add it in myself? Where do I do that?

Yes, you can add it in the Federal section of the program.

1. Select Income & Expenses 
2. Scroll down through all income until you see Investment income 
3. Select Stocks, Mutual Funds, Bonds, Other 
4. Select Add more sales 
5. Proceed to enter your information as prompted

Did you sell it?

you can't add more sales if you didn't sell it.

Thank you for responding.  I didn't state the problem clearly enough, I guess..  The asset is already included in the federal form for 1099-B proceeds from broker and barter exchange transactions. When the total is given on that page it is included. It is where it shows the capital gains and losses that this long term loss is not added in. Is there a way to change that?