On my instance I changed the action to Replace in case a user already had tried changing preferences.In the Key Path field, delete all characters before Printers.Now navigate through the folders until you get to the DevMode item and double-click on it.In the panel below select the item DevMode (Binary) then click the Finish button.Expand HKEY_USERS, expand user GUID that contains preferences, expand Printers, expand Connections, expand desired printer.Select Another Location and enter user PC name with preferences configured in step 2.Right-click in right side panel and choose New > Registry Wizard.Navigate to User Configuration > Preferences > Windows Settings > Registry.
The instructions below will help you create a registry item in a GPO that will add printer preferences per user via registry. I found a workaround, but it isn't pretty.
