Donchian Ultimate is a custom MT4/MT5/cTrader indicator coded by EarnForex.com. This is a version of a Donchian channel indicator with many options and features.
The indicator supports all sorts of alerts. It is also capable of displaying higher timeframe values on a lower timeframe chart.
More information about this custom MetaTrader/cTrader indicator is available here: https://www.earnforex.com/metatrader-indicators/Donchian-Ultimate/
Any contributions to the code are welcome!