Update:
1. code cleanup
2. BB can now have different upper and lower SD. you may use EMA or SMA.
3. HTF can be enabled/disabled as a whole or indivdual Indis.
4. Main vs companion plotting mode. Part B of this script have been hidden by mods because it was to similar to this script (Part A). so I hav included a script that you can easily switch from main to companion mode without altering too much codes. if you use companion mode: you need to set the overlay to false, or overlay to true and scale to scale.left..
5. Added smoothing for HTF but it somehow interferes with the BG color and also the trade signals. suggest to leave it disabled for now.
there is no strategy version yet for now. also no inbuilt backtester for now. might be included in the future.
Please let me know if you found any bugs. tq