Thanks for the response! I received a 1099-K for PayPal withdrawals (really just a return of capital and not net taxable income). I want to report the 1099-K amount on my return so that it doesn't raise any red flags with the IRS, but it's not really net income, so I was trying to think of the best way to report it as gross income but then cancel it out. My best guess was to put "Gross PayPal Receipts" on Schedule 1, Line 8z. And then "Gross PayPal Disbursements" on Schedule 1, Line 24z. I found out where to enter amounts on Schedule 1, Line 8z, but as far as I can tell there is no way to enter amounts on Schedule, Line 24z.
