After filing my 2107 tax return (Canada), I wanted to understand how "changes" to my return would effect taxes payable. (try out different scenarios).
I made of copy of the my tax file (using Turbotax|copy command) and opened the copy via turbotax. However, turbotax appears to have locked all fields on the return so that I can not change them to experiment with how those changes would effect my taxes payable. I even renamed the 2nd file so it would not have the name "Copy of ..."
Why are the fields of the copy locked? How do I unlock them? Or is there a different way to do what I want to do (I don't to make changes on the original return that was filed)?