Automate Symbol Parameter of Chart Indicator is opened in.

[Parameter("Symbol", DefaultValue = "EURUSD")]
public string SymbolCode { get; set; }

Can someone please help me with solution to automatically use Symbol (ie: EURUSD) from the chart the Indicator is opened in

instead of having to enter it via the Parameter every time I open a new chart pair.... Hope this makes sense....

Thanks in Advance and Cheers.