Allow me to dive into this thread to assist you with your concerns, @CarolB.

In creating your invoices in QuickBooks Online (QBO). You're right that you'll need to move the cursor to the name field to create another one. I understand how you wanted this option to be available to the product. Thus, I recommend posting your suggestions to our product development team by sending feedback.

Concerning the need to tap the name field multiple times to create another one. This is one of the unusual behavior in QBO that cease the product to perform well. In this, I'd recommend performing troubleshooting steps. These fixes get rid of typical issues that could make the application behave strangely, which limits QBO's ability to function. 

To open an incognito window, you can follow these keyboard shortcuts:

• Press keys: Ctrl + Shift + P (Mozilla Firefox & Microsoft Edge browser)
• Press keys: Ctrl + Shift + N (Google Chrome browser)
• Press keys: Command + Shift + N (Safari browser)

Once done, please log in to your account to a regular browser. After that, I suggest deleting your browser cache to refresh the system. If the same thing happens, I recommend using other supported browsers. This way, we can identify if this is a browser-integrated issue.

Furthermore, you can record your customer's invoice payments to complete and record them in your books.

Keep me posted if you have more concerns about managing invoices in QuickBooks. The Community always has your back. Stay safe!