Changing Expense Account for multiple bills..

Hello @testkits2020,

Thank you for posting here in the Community. I have some information regarding QuickBooks Desktop's capability.

Right now, you can only edit multiple customers, vendors, and items using Add/Edit Multiple List Entries. For the transactions, the option to reclassify them at once is unavailable.

At this time, you'll need to make the changes by editing each bill manually. You can use the Transaction List by Vendor report to view bills and update information.

Here's how to run the report:

1. Click the Reports tab at the top menu bar.
2. Hover your cursor to Vendors & Payables, then select Transaction List by Vendor.
3. Change the date range. 
4. Double-click the bill to edit.

Though, it would be beneficial to have this feature in the Desktop version, too. Our engineers might be working to bring this feature over to this platform in the future.

As we assess this, please send your feedback through these steps:

1. Click the Help tab at the top menu bar.
2. Hover your cursor to Send Feedback Online.
3. Select Product Suggestion.
4. Enter the necessary information.
5. Hit Send Feedback. 

I've also attached an article you can use to personalize the report output, like how to change the filters and display details in QuickBooks: Customize reports in QuickBooks Desktop.

Feel free to hit that Reply button if you need clarifications to the tasks you want to perform in QuickBooks. Have a great day ahead.