Thank you for reaching out, @drjsparker! That's a great question, and I’ll be more than happy to help establish the Addition and Deduction payroll item types in QuickBooks Desktop Enterprise Gold. I'll guide you through the process and ensure everything is in order.
At the moment, the option to import payroll items into QuickBooks Desktop isn't available. See this article which provides a list of items you can bring in: Import and export data in QuickBooks Desktop.
In the meantime, we can manually set up payroll items individually by going to the Employees menu and then Payroll Setup.
I recommend checking out this resource for more detailed information to help you continue with the process: Get Started with QuickBooks Desktop Payroll Enhanced. Once you’re there, simply proceed to Step 2, and click on each item to watch the corresponding video. These videos are a great way to help you understand the features and functions that are available to you.

In addition to this, there's an option to set up payroll taxes for an employee who works in another state. This is useful for situations where an employee may be working remotely or from home in the future.
Please don’t hesitate to share any questions or concerns about setting up payroll item types. Making sure that payroll is set up to match your needs is my biggest priority. I’ll keep this thread open so you can always come back for assistance. Your thoughts are important to me. Have a wonderful day!