Here it is another impossible one EA! (probably not for you!)
Using the indicator overlaychart (EursUsd VS UsdChf in picture), the idea is working only with negative correlated pairs.
-We have 2 ways to enter:
First: after price charts are crossing each other we buy the upper currency and sell the other. The next entry is only at next cross.
Second: When price chart difference between the 2 currencies is greater than "x" pips we buy (or sell) both currencies.
If price difference between both currencies increases for more "x" add the same positions with n factor lot size and so on...
Close all positions when profit reached "x" pips or account %
Please enable EA to trade with the same logic, but using instead, the crossing of Donchian MA V2 indicator (created by you) for each currency.