WiFi/ Internet Unavailable

Is it possible to use Charts (a preplanned service) when an internet connection is not available?

While viewing service setlists in the Charts mobile app, the app caches data from each service you open. Essentially, it temporarily pockets data from the setlists onto your device so that you can open those setlists offline. Only setlists that were recently accessed (and, therefore, cached) while you were last connected to the Internet will be available for selection when your device goes offline. If you need to check or empty your cache, you can do so on the Charts settings page.

Note: when online, you may need to keep setlists open for a couple of minutes for the data to be saved in the cache. If you go offline before the data save, you may not be able to access the setlist offline.

Thanks -- this should do the trick for me.