If one wishes to see the logs for a particular Event Type over a period of time, the user has to manually go into each Event Log file one by one. Since one Event Log file is generated per day, this can be quite tedious. For example, if you wanted to see how many users looked at a particular Visualforce page over a 30 day period, you would have to look at 30 Event Log files.
Is there a way in which to generate a single Event Log file for the Event Types which you wish to analyse? For example, a better way would be if one could say 'for this 30 day period, show me all the logs where the EventType = 'VisualforceRequest'. That would save a lot of time.