Did you use my version with the 1.2.5 version of highcharts? That one should make the resizing/moving work. See the demo at http://www.i286.org/examples/index.html
Anyway, nice work. Good idea of creating a ChartStore, this is very useful for implementing many series. At the moment i work on a version that handles the chart as Ext.chart.Chart.
I'm currently working on an extended version of the current HighchartPanel that will work the same as the Ext.chart.Chart. So you can bind series on columns instead of a new record. (Using HighchartPanelJson and Ext.ux.ChartStore).
Originally Posted by christophe67