Tweaking an existing MT4 EA based on RSI

Hi.

I have an existing EA for MT4 based on 2 different RSI crossing same time the same level. 

what I need:

both RSI need a selectable level to cross, up or downwards (for now it's the same one)

I need a 3rd RSI with fully settings: but not crossing a level, the 3rd RSI need to be between 2 values

in my example:

RSI 1 crossing downwards level 75

RSI 2 crossing downwards level 70

RSI 3 is between level 30 and 70

go short on open of next candle vis a vis for long crossing upwards same time different, selectable levels, RSI 3 need to be between level x and Y

thanks in advance

zkrizz