updates.
see the EUR/JPY %K white line crossing the purple %D. could have been an easy CALL/Higher option but i was editing.
also, make sure %K line came from an OB/OS zone so the signal is stronger.
i am still finding a good filter to make the system better.

P.S.
the mt4 indi below is very close but not quite as there are some discrepancies when i compare it to the default stoch oscillator of mt4.
from the pic below, there are arrows that doesnt correspond to any crossover (maybe coz of volume and volatility that made retract of crossingover)
i did manual on iq option when i opened those trades (first pic)