Writing of Expert Advisor base on two pair ATR indicators for long and short

First pair 20MA period &  20MA period First band multiplier 1.5

Second pair 7MA period &  7MA period Second band multiplier 2

Long

Draw a "Up Arrow" when the price bar is rise and close above the "Upper band 1".(Up Arrow drawn on the high of the bar)

Draw a "Exit Mark" when the price is "Touch" the lower band 1 (Exit mark draw on the high of the bar)

Open a "Buy Limit" trade on the next bar of "Up arrow".

"Price" is the previous Close  reduce "X" point

Lot  size is "Z" it can be set on the input parameters. (from 0.01 )

Take profit "Y" point , it can be set on the input parameters.

Stop loss is the point of the previous "Lower band 2" ,this point will be adjust every new price bar close.

if the stop loss is fail stop on market price

Between" Up Arrow" and "Exit Mark" do not trade more then one time

Short

Draw a "Down Arrow" when the price is drop and close below the "Lower band 1". (Down Arrow drawn on the low of the bar)

Draw a "Exit Mark" when the price is "Touch" the upper band 1 (Exit mark draw on the low of the bar)

Open a "Sell Limit" trade on the next bar of "Down arrow". 

"Price" is the previous Close add "X" point. 

Lot size is "Z" it can be set on the input parameters. (from 0.01)

Take profit "Y" point , it can be set on the input parameters.

Stop loss is the point of the previous "Upper band 2" ,this point will be adjust every new price bar close.

if the stop loss is fail stop on market price

Between Down arrow and Finish Mark donot trade more then one time

Add "X", "Y", "Z" on input parameters other remind unchange (reference file)

All trade will be record and not affect by server reset .

All trade should identify to different market.

This EA will be only 1 file

The raw code to be provide for future upgrade.

Attach with the ATR indicators for your modify