For example, we currently have a plot that has three layers of groupings
eg. We have a series of data that each point has a sample type, disease state, probe and gene associated with it. We want to move onto highcharts but would need to be able to show the sample type in the label/colour but show the breakdown for the disease state, probe and gene. See below for our current implementation in flot.

https://docs.google.com/open?id=0B0Nu-R_YNfgIb0Fidmt1TFd1TU0

I apologise if I can actually already do this - I thought I would ask first before I tried implementing it - I didn't see anything that suggested this could be done.