I am unsure if your question targets the old RadChart or the new RadChartView. In general we would suggest using the ChartView as it has a higher performance rate and is generally more flexible.
I am also unsure what you mean by anchors. Do you mean annotations? Check our online examples (here
). Perhaps you can achieve this scenario with the custom annotations. If you need further assistance I will ask that you provide us with a snapshot of the desired result.
All the best,
the Telerik team