Need help to modify a indicator.

[quangdk]

Hi everyone,

I usually use Average True Range Histogram Color for trading. Now I want use this indicator with other symbol 's parameter in current chart.

For example:
My current chart is "gbpusd" symbol but Indicator window show ATR histogram of "eurusd" symbol.
Or My chart is "USDJPY" but ATR is of "US30-Sep18" or any other symbol in market watch.

Anyone can modify it for me, please ? Thank you.