Apologies if this has been covered before but I couldn't find it... I wish to add arrows to 10 minute OHLC bars where the arrows tell whether the high or low was reached first. I'd like the arrows to update as the bar is created, not once it is created. To do this I believe I can add a secondary tick data or 1 sec data series to indicator code to be run on the 10 min chart and use this to update the printing of the arrow on bar update.
Could you please direct me to necessary resources to achieve my aim.
Thanks
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