Run a script on all opened charts?
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Is there a way to run a script on all opened charts with MT4?
Thanks!
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What do you want to do ? You can specify things like Group, Symbol and Time frame within the blocks.
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Yes I know, but what I want to do is to run a script that print horizontal lines on specific levels (highs, lows, etc.). I want to run that script on all the charts opened, I can't specify the symbols because it's not always the same.
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I know the opposite function (ExpertRemove) - to remove the robot from the chart. If there was a function to add a robot to a chart, I think it should be in the same category of functions, but I don't see such function:
https://www.mql5.com/en/docs/common/expertremove
