If you accidentally deleted data that transferred over from 2016 to your 2017 return, then sadly the only way to recover it is to clear and start over, unless you can re-enter that information manually. The transfer from one year to the next can only happen at the very beginning of preparing the tax return--you cannot do it later.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
