Hi Mrtools and coders, how do you check two different periods on the "high" or the "low" and not three?

I explain; for example when the RSI(5) and the RSI(7) applied on the "high" exceed a horizontal level upwards then a buy arrow is displayed.

Same thing with the RSI(3) and the RSI(5) or RSI(3) with the rsi(7), so to display a buy or sell arrow we use only two different periods applied only on the "high" or "low" and not three periods as indicated in the source code Thank you.