Hi,
In my project I need to change bar display period often. Milisecond, second, minute, hour... and back, and forward all the time.
Dropdown for doing that is good, but it would be much easier if TimeChart would have a gesture for that.
I think that two or three finger swipe up/down would be perfect.
For example,. if I am viewing data grouped by minutes, I swipe up with 2 (or 3?) fingers, bars change to hours. I swipe down, they go back to minutes. I swipe further down, they change to seconds.
Thank you for such beatiful charts. We are now so used to them that find all other charts complicated to use! 
