Based on the request.
viewtopic.php?f=27&t=65128&p=115198#p115198
Fully customizable Bollinger Band.lua is available here.
viewtopic.php?f=17&t=65024&p=114420&hilit=Fully+customizable+Bollinger+Band#p114420
PIVOT_SIGNAL.lua is available here.
viewtopic.php?f=17&t=65156&p=115294#p115294
The Strategy was revised and updated on January 21, 2019.