Hello there, @FR2X-MP.

At this time, you can manually unchecked the billable box from the billable columns so you can unchecked all the invoices.

However, I will take note of your experience and send this to our product developers. They make improvements in QuickBooks by listening to our customers' suggestions and comments.

As always, you can visit our payments for QuickBooks Desktop articles in case you need some tips and related references for your future tasks.

Don't hesitate to drop your comment below if you have any other questions. Have a nice day!