BBands Stop indicator description
1) The first stop is when there is a trend change, the stop is set to the same as the opposite side bb. Then it stays the same as the band as long as the band is going in the direction of the trend, but then when the bb changes direction, it stays level, just like any other trailing stop.
Look at the first blue dot in your picture, the close of that bar is above the previous bars red line = trend change. Then it stays level as the bottom bb goes down.
2) If you have a sharp eye and can stay focused 100% you can do it maually, but it will be difficult. But why, no matter what platform you are on somebody can code this thing.
3) And you didn’t tell me what platform you are using.
BBands Stop indicator download