MultiTimeFrame Shifting Bollinger Bands

Just 3 Bollinger Bands with different adjustable timeframes plus shifting (left/right) capability and non-integer deviation values.
I wrote this because I couldn't find the perfect BB indicator that matches my needs. Feel free to use it.

版本注释:

- A tweak to the background colors transparency

版本注释:

Completely changed code structure (because Pine is an odd and weak scripting language!)
Added options to show/hide BBs
The highest and the lowest band of all showing BBs has been highlighted

版本注释:

Added options to show/hide MAs