Why is hour granularity unsupported?

[henry.omd]

Hi, while using NT, I've always had to resort to 60 minutes bar to specify hour bar. Usually, this doesn't matter so much, but when exporting DB, I began to wonder how much data is exported: since I can't specify the number of minutes in Export Historical Data, I have to save 60 times as much as if I could specify hour bar type. (RFE, please allow specification of the beginning of the day). So I began wondering hour the hour bar type is systematically missing in NT. Is there an interesting reason behind it?

-Henry

[NinjaTrader_Ray]

Tick based intervals use tick data as its base.
Minute based intervals use minute based data as its base.
All else use daily data as its base.