This is an revised Open Public version of Vdub Bollinger Band %B reversal indicator. This version includes optional Divergence Finder with selectable channel width, optional Market Session time highlighting and optional Binary Option expiry markers.
A simple script to show the Fridays (Weekly Option Expiry), of course this is a basic script we can make a few more improvement.
One of many ways to utilize the "dayofweek" variable.
Currently there are no options to draw a vertical line, you can do a background color for the candle.
Future plans - Include monthly option expiry.