Thanks for following this thread, @Tredunzo. It looks like you're experiencing a browser-related problem. Hence, the option to edit the existing template didn't appear. 

We can log in to your account using a private browser or incognito window to fix this issue. Use the following shortcut keys below:

• Google Chrome: Press CTRL  + Shift + N
• Mozilla Firefox: press CTRL  + Shift + P
• Internet Explorer: Press CTRL  + Shift + P
• Safari: Press Command + Shift + N

If the option is there, go back to your regular browser and start clearing the cache. If the issue persists, use another supported, up-to-date browser.

For future reference, check out this link to see what's new with estimates and invoices in QBO and how it can help your business.  

Feel free to visit and post again if you have additional concerns. We're always around to help.