But .. we could try to build the monthly candlestick from OHLC values collected along the reading of daily data history. If your query is still valid, @TraderArun, I think that we could do something!

It’s not possible to reference the Monthly timeframe. However I successfully made this monthly pinbar screener:

if month<>month[1] then 
oo=open
hh=0
ll=oo*100
endif

hh=max(high,hh)
ll=min(low,ll)

body = ABS(oo-close)
bearishwick = ABS(hh-close)
bearishnose = ABS(close-ll)
bullishwick = ABS(close-ll)
bullishnose = ABS(hh-close)

//bearish pinbar
bearishpinbar = (body/bearishwick)<20/100 AND (body/bearishnose)>100/100

//bullish pinbar
bullishpinbar = (body/bullishwick)<20/100 and (body/bullishnose)>100/100

test = (bearishpinbar or bullishpinbar)

screener [test]

Seems to work fine, please confirm.

You can try with:

if month<>month[1] then
c=test
oo=open
hh=0
ll=oo*100
endif

hh=max(high,hh)
ll=min(low,ll)

body = ABS(oo-close)
bearishwick = ABS(hh-close)
bearishnose = ABS(close-ll)
bullishwick = ABS(close-ll)
bullishnose = ABS(hh-close)

//bearish pinbar
bearishpinbar = (body/bearishwick)<20/100 AND (body/bearishnose)>100/100

//bullish pinbar
bullishpinbar = (body/bullishwick)<20/100 and (body/bullishnose)>100/100

test = (bearishpinbar or bullishpinbar)

screener [c]