File exports for custom time-frames is a good idea and has been put on the todo list. If you have some specific time-frames in mind that you would like (you’ve mentioned 30 min and 4 hourly – anything else?) then please let us know and we’ll try get it in the next version.
Great, thank you. 30M and 4H is what I need, but like I mentioned, it would be most helpful to have it totally customizable to any time frame you want.
Support for exporting 30-minute, 4-hour and 12-hour time-frames to file will be available in the next release. Custom time-frames are on the todo list.