Ketner channel is calculated as SMA (Simple Moving Average) +- ATR (Average True Range)
This version is deviating from that. It allows you to use one of the 4 average types :
and instead of using "regular" ATR it uses the smooth ATR (which is much smoother and faster from the regular ATR)

Volty channel stop - smooth ATR
Volty channel stop - smooth ATR
Smooth ATR trend envelopes of averages
Smooth ATR trend envelopes of averages