It's nice to see you again in the Community. I'm here to help provide information about the Quarterly Combined tax report for Oregon.
If you're using QuickBooks Online payroll, you should have the option to submit the tax worksheet or file the OQ electronically to the agency. Please refer to this article for more information: Oregon Payroll Tax Compliance.
As long as you have added or update your company details and tax information, you should be able to pull up your OR OQ Worksheet.
If you need additional information about preparing your payroll tax, you may refer to this article: Prepare for payroll tax setup.
This should help get you on the right track.
Keep me posted if you have other questions about the OQ Tax Worksheet. I'll be here to provide further help in any way I can. Best regards.