Can I revert to QB Pro manually if only a few items were listed in online and banking payments is stopped?

Good day, @info-ninhelps-or.

You can export and convert your online data to the desktop version. Before doing so, you'll need a recent version of QuickBooks Desktop installed on your computer. 

You can download a trial to use as an alternative.

For more details, you can check out this link to know more about the Limitations when you convert from QuickBooks Online to QuickBooks Desktop.

Once you have decided to switch back to the Desktop version, follow the step-by-step instructions in this link: Export and convert your QuickBooks Online data to QuickBooks Desktop.

Learn about managing your data in QuickBooks Desktop:

• Manage your QuickBooks Desktop subscriptions and services
• Understand reports
• Customize reports in QuickBooks Desktop

Please let me know in your reply if you have additional concerns. I'll be around to help.