A little-known feature is that the SmartView Monitor does have some historical reporting capabilities; these were covered on pages 464-466 of the latest edition of my Max Power book. However these historical reports may have limited data unless you have set these checkboxes on the gateway/cluster object (they aren't enabled by default):

Once those have checkboxes been enabled and policy installed, in SmartConsole go to Device & License information for the gateway in question, then select Traffic...Top Interfaces. Now select the "New" button as shown here:

This screen will give you the option to select a History report instead of Real Time which is the default:

Then select which data elements & timeframe you want in your historical report on the Traffic History tab:

Many of the Traffic and System Counters reports have historically-based reports available, it is just a matter of creating a custom report query to see them since real-time mode is the default.
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