Hi stranger,

This is my script with Exponencial moving average in my scales ( 21,55,100,200) which I use, and Simple moving average (30,200).

Enjoy
study(title="EMA 21,55,100,200/SMA 30,200 ", overlay=true)
shortest = ema(close, 21)
short = ema(close, 55)
longer = ema(close, 100)
longest = ema(close, 200)
ma = sma(close, 30)
ma1 = sma(close, 200)
plot(shortest, color = yellow)
plot(short, color = green)
plot(longer, color = aqua)
plot(longest, color = purple)
plot(ma, color = blue)
plot(ma1, color = red)