As far as I know, Smart Count doesn't natively expose a recount history indicator on the review screen, and since that page is rendered through a Suitelet, adding a custom column isn't as straightforward as with a saved search. One approach is to track recount events with a custom field or workflow and surface that information elsewhere, or customize the Suitelet if that's an option in your environment. I've worked with NetSuite customizations and SuiteScript before, so I'd be happy to help explore the best solution for your setup.