In order to add this feature, go to the Control Panel>Websites>Content.
Click on the main website node
Click on the Pricing tab in the right window
Scroll down till you see the feature checkbox for “Show Payments Around” and check that box
Click on the Edit Link in the Finance Options section right below that – this will show you the parameters you can set
Set those parameters, then click the Close button
Click the Save and Publish button back on the main page and check the results to make sure it is doing what you want.
NOTE: You can add a second set of criteria (ex. if you want different options for New vs. Used or different product types etc.) by clicking the Add Item button and then setting those criteria.