Thank you for the reply Kathryn. I did itemize last year and typically do.
I too was reading through the MN Line 6 instructions which lead me to post my question. Since I did file a return, and, I do have an amount on Line 1 of federal Schedule 1, I was expecting TurboTax to populate MN Line 6 automatically.
If I manually override MN Line 6 and put in the refund amount (per federal Sched. 1) then that increases my refund for this year (2019) by. However, I am then unable to e-file per turbo tax.
In the end, I ended up leaving it blank, as TurboTax has it. I like to think it is smarter than me.