Options for changing fiscal year variant - not in production yet

We created a fiscal year variant and found issues with the period end dates that were entered after we transported to our Q environment. Is there any way to update the DAY value in the variant or do we have to start over and create a brand new FYV? There are no postings against this variant, it is being used in our BW environment for reporting only.

I am only able to edit the period and year shift values, not the day.

I have tried deleting the erroneous entries and adding the correct ones back, but new entries go to the bottom of the list and I get an error that the dates are not in order and the changes are not saved.

What are my options?