You'll want to use the "Other Income" field of the Schedule 1 income section to enter any NOL respective of the scenario.
You'll want to enter any NOL information as "Other Income" in the Schedule 1 income section, noting that Holistiplan does not calculate the allowable amount of any NOLs (which is what the question mark/help icon in the Allowable NOL field reads). See below:
Remember that only NOLs arising after 2017 and carried forward to a year after 2020 are subject to the 80%-of-taxable-income limit. The total amount of any NOL deduction for 2021 or thereafter that is attributable to NOLs from tax years after 2017 can’t exceed 80% of taxable income without regard to the NOL deduction or sections 199A or 250. IRS Publication 536 provides additional details on NOL for reference if you want to review further.