Martingale Hedge EA

I want an ea that will be able to open a hedge order on a pair based on lot size of open order on the pair and be able to also martingale the hedge order.. ea should have lot size, lot starter, lot multiplier and pip distance in inputs, ea should be able to close all trades once original trade closes.. The lot size should be for setting what lot size would be opened on the platform before ea opens first hedge order. Lot starter should be for setting the starting lot of the hedge order, lot multiplier will be for setting the the number for which ea will multiply previous open lot with to get the new lot size for next martingale order it will open. Pip distance is for setting the difference in pips between martingale hedge orders  

I want the ea to work like this... for example if I put the ea on eurusd chart and set lot size 1.0, lot starter 0.5, lot multiplier 2.0 and pip distance 5.. Once an order with a lot size higher than 1.0 lot opens on eurusd, say a buy order, the ea should open a sell order of 0.5 as the lot starter is set to 0.5. If the 0.5lot sell order goes down by 5pips, ea should open new sell order of 1.0lot because lot multiplier is set to 2.0 and it should continue to open sell orders according to lot multiplier and pip distance.

Once the buy order closes, the ea should also close all the open sell orders immediately.