Report exporting

Currently, the only option to schedule reports is either at midnight or afternoon and we have to use the inbuilt time frame for that. We have a huge number of netflow records and Netreo hangs up when doing a 24 hour or 12 hour report. A 5 hour report becomes useless because it does not cover the whole day and from my understanding the 5 hours are from the time the report was scheduled meaning at midnight and noon. Can we get options to schedule reports more frequently and in increments of 2 or four hours so we can get reporting for a whole day.