This EA uses only one MA with the upper & lower lines above and below the same pips from the original MA (mid line).

Take the 1st position on the upper/lower line when the exchange rate goes outside of the upper/lower line and return to the upper/lower line (Sell on the upper line and Buy on the lower line).  EA will take only one 1st position.

Then, EA adds averaging posotions according to the rule as follows:
1. Take additional position everytime when the price goes by the Averaging gap (pips set by EA parameter) in the opposite direction from the 1st position .

2. The size of the averaging position is increased step-by-step by doubled lot of the 1st position (ex. When the lot size of the 1st position is "1," the position will be increased to 3, 5, 7, 9....  If it start with lot size "3," it will be 3, 9, 15, 21...).


The following paramater should be included for the parameter of the EA:

[General]
Magic: Magic number
First Lot: The lot size of the 1st position
Slippage: Allowable slippage

[MA]
Period: Period for the MA
Shift: Shift for the MA
Method: Simple, Exponential, Smoothed, Linear Weighted
Applied price: Close, Open

Gap level: The distance of the upper/lower lines from the original MA (the example of the attached photo is +/-100).

[Averaging]
ON/OFF: Enable or disable the Averaging (if disabled, make only the 1st position)
Averaging gap: Pips to take averaging positions everytime when the price goes against the 1st position

[Auto Close]
(Average close: When the average profit of the all positions reach to the Average profit, close the all positions.)
Average close: ON/OFF
Average profit: pips

(MA close: When the price crosses the original MA, close all of the positions.)
MA cross: ON/OFF 

* If both of Auto close methods are enabled, close the positions when both conditions are satisfied.

Please also refer to the attached photo for further details.