I am trying to run a detailed transaction report on expense GL accounts and they are not included in the drop down?

Hello there, @dawn-impactarchi.

I can help you customize and generate the Transaction Detail by Account report. Let me guide you on how to it.

1. Go to the Reports menu.
2. Scroll down to the For my accountant section.
3. Double-click on the Transaction Detail by Account report.
4. Click the Customize button.
5. Set the date range of the report.
6. From the Filter section, mark the Distribution Account tickbox.
7. Select All Expenses Accounts. 
8. Click the Run Report button. 

You can save the customization you've just created for future use. Once completed, you can send it by email on a recurring schedule.

Also, I've added these articles to help you personalize the reports in QuickBooks to suit your business needs:

• How to Filter Reports: Customers, Vendors, & Products 
• Customize reports in QuickBooks Online

Visit us here again if you have other questions in managing your expense-related reports. I'm always here to help.

I'm back to ensure your concern is addressed, @dawn-impactarchi.

Have you tried generating a detailed expense transaction report using the steps I've shared?

If you need more clarification on this, just leave a comment below. I'll be sure to get back to you.

Wishing you and your business continued success.