Deductions & credits

@PatriciaV My 2019 taxes generated an Alternative Minimum Tax Depreciation Report.  There is nothing in the "Adjustments Preferences Column" (on 2019 or any other year that I see).  In what column would I find amounts for the next year? While I do have both the Depreciation and Amortization Report AND the Alternative Minimum Tax Depreciation Report the only difference I see is an added column (Adjustments Preferences) on the 2nd report which contains all zeros.  So what should I fill in the Prior AMT Depreciation blank? Thanks for your help