Ema 9 crosses

inputs ema200 close, ema 100 close, ema 50 close, ema 9 close. buy condidtion: if ema 50 is above ema 100, ema 100 is above ema 200 then enter in buy when ema 9 will cross over ema 50, tp should be changable, sl is ema 50. sell conditions if ema 50 is belowe ema 100, ema 100 is belowe ema 200, then enter in sell when ema 9 will cross under ema 50, tp should be chnagable, sl is ema 50. lot sizs should be stable but changable like ex 0.01. want to be done for mt5 and to be able to make backtesting