Thank you for reaching us here in the Community. Allow me to step in for a moment and help make sure that you can file your Annual Statewide Transit Tax Withholding Return in QuickBooks Desktop (QBDT).
If you're using the Enhanced Payroll for Accountants, it's likely that it auto-populates on the form because you set up your accountant's information to auto-fill on your payroll tax forms.
When setting up each employee in the employee center, you must also assign OR STT under payroll: taxes: other. The same area where you make the OR WBF company and OR WBF employee selection. If it is set up here it will calculate the amount withheld from each paycheck and the total will flow through to the W-2. The total OR STT does not populate/get reported on the W3.