It's new to me and I have played with it, but I am missing something. The instructions regarding programming mention pressing the RVW (review) and CHG (change) buttons after you get into program mode by holding down CITY and BRT buttons for 2 seconds. Sooooo, where the heck are the RVW and CHG buttons? Are they referring to other buttons that have this dual purpose, as I see no such marked buttons. Excuse my ignorance, but I am not real Tech savvy, being an old guy.