Three different "Bollinger bands", which can be set individually. With this script, the "length", the "standard deviation" (StdDef), the "offset" and the "source" can be set for each band. The script is very clear. The basis of the script is the standard indicator "Bollinger Bands".
The script can be used for all markets and all time units.
The script can be used for all markets and all time units.