"Index" or "IndexEvent" defined for milliseconds.

Hello,

I need to display a BarChart so I have to define points as IndexedEvents. I understand the concept of Index class and it is right for me as I need to present agregated values. I can display a BarChart with indexes where the multiplier index is for seconds (like "1s-43264")... the question is:

**Can I define Index for miliseconds ranges?** What would be the multiplier index? or is it simply not possible? (if not, what would be the alternative?)

It seems I cannot find the response in docs as it is only mentioned as examples, and never talk about millis.

Thanks in advance.