Please help. How to place arrow at previous highest resistance within 10 candles,20 candles, 30 candles and so on

[chase]

How do i make ea draw arrow at highest candle price within 10 candle? Then draw another arrow at highest price within 20 candles and so on...

[l'andorrà]

When you say resistance you mean highest high/ lowesto low within those candle groups?

[chase]

Yes. That is what I mean. Place arrow at highest high/low with those candles

[varso]

First problem is that EA work forward not back.
Maybe and this is not about Ea but about strategy it will be better to use indicator i can recomend to you
3 level zz semafor
https://www.best-metatrader-indicators.com/3-level-zz-semafor/

but if you still want this level high and low. I did it some time ago like this.
I wrotte highh wick to formula and wrotte it to variables then compare with next candle and repeat it like 10 times let say.
but maybe it another solution.

[l'andorrà]

You can also try this:

This block will draw a line on the highest high of the last 10 candles. You will need another one for the lowest low line.

[chase]

@varso . Thanks. I shall try it and see if i can make it part of my startegy