nova

I was playing around with the DargNode example in order to evaluate its suitability to our needs. I encountered some issues: 1) How can I determine the z-order of the charts elements except of relying on their order in the xml? This is problemtic when I need to located a sub-chart, including connectors on top of a large shape the will function as a background to the sub-chart 2) How can I add horizontal swimlanes to the chart? and how can I determine the y start point and swimlane height?