An alternative to the Bollinger Bands® indicator using Average True Range.
The indicator uses SmoothAlgorithms.mqh library classes (copy it to <terminal_data_folder>\MQL5\Include). The use of the classes was thoroughly described in the article "Averaging Price Series for Intermediate Calculations Without Using Additional Buffers".
The indicator has originally been written in MQL4 and was first published in the Code Base on 24.06.2010.
Fig.1. The True_Range_Bands indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/15089
The XMA_KLx7_Cloud indicator with the timeframe selection option available in the input parameters.XMA_KLx7_Cloud
Three Keltner channels based on one moving average, drawn as a colored cloud, with the display of the last values as price labels.