Hello, i want to request an indicator from my idea.
I need Bollingger band indicator with SMA 20 and standart deviation 3.0
(In this thread I found indicator called Bollitoucher, but the BB line is not smoth like this) Buy condition: when candle close price is below BB line
Sell condition: when candle close price is above BB line

This strategy is very useful for binary. So please can you make this in to an indicator? Thankyou very much