Start the Document production process on any template from any job.
At the first screen after selecting the template click on Wizard Options at the top left of the screen.
Click on Preview Replace Codes and click off the Wizard Options, anywhere in DPW screen. Now if you click on wizard options again there will be a tick next to Preview Replace Codes.
Now when you run the Document Production Wizard for any template in any job you will be presented with the Replace Codes preview screen, as per below. You can review and edit as required before completing the wizard.