zerodha pi scanner guidance

hello i wanted the scrips which are below their 50day moving average and have formed either bearish engulfing or dark cloud in their last 30mins but i am not getting any alerts can any one guide me with it .

LAST < SimpleMovingAverage(CLOSE, 50)
AND

CSP()=BEARISH_ENGULFING_LINE OR

CSP()=DARK_CLOUD_COVER