I appreciate you for reaching out, Al_a. Let me share to you some insights into creating invoice templates.

In response to your query. We can import your invoice template style to generate several invoice templates in QuickBooks Online. We cannot, however, create two templates with distinct messages since modifications made to one template would have an impact on the other templates.

Moreover, you might find it helpful to check out this article to get additional insights on how to customize invoices, estimates, and sales receipts in QuickBooks Online.

Please feel free to ask me any follow-up questions or clarifications about invoice templates in QuickBooks Online. I'll be here checking your post 24/7. Have a great day!