Candle low or high is same – make line on chart

if we cannot draw line can we change colour of candle and make alert?

If we attempt to do this, the code will color every single pair of candles where the lows are equal. It will not pick only the ones you have marked on your screenshot. There will be know way for you to know which candles have matching lows because dozens of candles will be painted. Just because your eye can easily spot something important on the chart does not mean a computer can do the same. Human vision is far more advanced than even the most advanced super computer. We cannot do stuff like this with a scripting language. To state this another way, there is far more details involved in picking those two lows on the chart. There is a lot more to this than you can know.

Thx for replying, so if i understand you right system will paint all candles whose lows are equal? if that's the case i was looking for this only, can it be done on different time frame(1 mint 5 mint daily)? how can we do that ? if low of candle = to low of candle in a day then paint white or if high of candle = to high of new candle paint white ....

I've been trying to tell you this cannot be done. My previous attempts have failed so I will just come right and state this plainly. This cannot be done. Period

Thanks ... :)