I need to file an amended 2017 return. Turbo Tax gives steps but then only asks about certain of amendments, not the kind I have--a carryover loss. How do I amend?

Once you have started the Amended return,

• Click on Search
• Type "Capital Loss Carryover" in the search window and click Enter
• Click on "Jump to Capital Loss Carryover"
• Answer "Yes" to "Did you have investment losses you couldn't claim in 2017?"
  
• Indicate "Yes, I know my capital loss carryover amounts."
• Enter your capital loss carryover amounts from 2017