Intermarket Spread

[Wayne12]

Good day,I need help create this indicator for Intermarket spread chart ,just a simply subtract the prices one market from the other and plot the difference as a line chart (the closing prices) in sub windows so that I can apply indicators into it.Thank you. Attached the sample chart.

[William Roeder]

1. Don't attach a file, insert the image

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2. Indicators can only read from the current broker chart. What you want is very complicated.
3. learn to code it, or pay someone. We're not going to code it FOR you. We are willing to HELP you when you post your attempt (using SRC) and the nature of your problem.