How to open a trade

[ali.rezayat]

I have drawn two horizontal lines for the highest and lowest prices of the last 30 candles. But I don't know how to set to open a trade by closing a candle above or below these two lines.

[jstap]

You can get the price level by using object on chart, put this into a comment, you will have to name each line. Would be easier to use the price from last 30 in market properties, using a condition block candle close < >.