this is a much requested feature, please let us know when this would be available. I would be happy to test it if you have alpha or beta version available. Appreciate if you can provide an update.
As of now I’ve a working prototype but it would require couple of days more for me to give you an internal build. Please contact me at info [at] canvasjs [dot] com after couple of days and I’ll give you an alpha version of the same.