Hi, @BDW11.

Let me share some insight about duplicate invoices in a batching way.

In QuickBooks Online, only Advanced has the option to do the duplicate invoices in a batching way. I recognized your challenges in your business with limited access to a specific feature. 

However, you can only do it one at a time using your current version.

On the other hand, you can also use the importer tool as what 4gal said above.

For future reference:

1. When you want to make eye-catching invoice forms, I'll drop an article for it: Customize invoices, estimates, and sales receipts in QuickBooks Online.
2. Suppose you want to send customers summaries of their invoices, payments, credits, and balances. Here's an article: Create and send customer statements in QuickBooks Online.

Leave us a message if you need further assistance with your invoices. I'm always here to help.