Thank you for your opinion.
The logic is currently set to simply compare three consecutive bars.
'bull & bear engulfing & bull engulfing'
'bear & bull engulfing & bear engulfing'
So, the comment is not checked for the following reasons.
Bear & 'bear & bull engulfing & not bear engulfing'
Of course it is possible.
However, I am not good at using 'Pine script' yet.
'Pine script' is not as flexible as a high-level programming language.
OB is also just one of several technical analysis methods. I hope this is a reference to your trading. Thanks. :)
Cost? No~ ^^;;
In fact, I don't use a lot of OB for my trading. I've seen some teams offer similar scripts for a fee, and I've only made it an experience. sorry..