Nice to have you joined this thread, Craig.

I also admire you for sharing your thoughts and opinions about having the ability to send invoices by batch in QuickBooks Online (QBO).

Currently, the option to do so isn't possible. I understand having this feature can aid you in seamlessly running your business. As an alternative, you can follow the workaround shared by my colleagues MaryJoyD and DivinaMercy_N in creating a recurring invoice. 

You can also utilize the Apps menu or visit our QuickBooks App Store page and browse for an app that has the feature you need. Once you've found one, review its comment and click Get app now when you're ready to link it to your QBO account.

In addition, you'll want to send your feedback to our Product Developer team. This way, they can review it and might consider adding it in future updates.

Furthermore, I got you this resource that provides complete details on how to modify your sales form to make your business unique: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Know that you'll always have my attention whenever you have other queries about invoices or with your QBO account. Our door is always open to help you run your business flawlessly. Keep safe and have a great weekend!