[CLOSED] Update chart legend dynamically

[Argenta]

I want to be able to change the legends in a chart depending on the selection a user makes. Presumably this means changing the Title of the series concerned. However, there doesn't appear to be the ability to give a Series an ID. So I don't know how I can access the title in either javascript or code behind? I'm sure there's a way, but how?

[Argenta]

I've managed to solve this using Ext.getCmp('ForecastChart').series[0].setTitle("Test");.