This version of Donchian Channels uses two source options so that one can create a channel using highs and lows rather than one or the other or closes. My thinking was that this would create a more accurate portrayal of price action (or at least contain the greatest scope of it) as seen through the lens of a Donchian Channel. This was actually part of the genesis...
For the fibonacci traders.
The Auto Fib Retracement Is a good indicator for tradingview to show you the current alerts and points to watch in the market
IMPORTANT SETTING => Retracement
This controls your alert levels
I have modified it to deliver the following
+Custom Fib retracement level alerts
+Drawing of old levels and retracement levels