PTO has a Balance Sheet Miscellaneous page, with Book Depletion as an option. The only field that allows a dollar input is "Accumulated book depletion on assets sold." I put a -1 in that field but the accumulated depletion on the Schedule L still shows the percentage depletion. However, I tried putting different amounts in the field and discovered that PTO was treating the amount as an adjustment. When I put the amount of the percentage depletion in the field as a positive number, it reduced the accumulated depletion on the Schedule L by the same amount, resulting in no accumulated depletion.

Thanks for your suggestion. Although I had to tweak it a little, it put me in the right place to get it fixed!