Use 2 or more Expert Advisors in one account?

I need a solution to use on 1 account more than 1 Expert Advisors.

I have 2 Expert Advisors which seems to be profitable. I coded both strategies in 1 EA, but they cannot run together, because when first strategy closes "all positions" than it closes also all positions from the seconed strategy.

At the moment i have 2 methods in 1 EA which returns folowing values in order to trade:

1=open long

-1=open short

99=close all 

I need a solution how to run  these 2 methods without affect the positions of the other method.

I can make 2 separate EAs by copy my "big" EA and delete in each version 1 of these methods, if needed. My main demand is to be able to backtest WHOLE system (including both EAs) to see what would they do running both on 1 account. And my 2nd demand is to keep performance as good as possible.

If i have to run nearly the same EA only 1 method is different, than all the indicators will be calcualted 2 times. And i have some heavy indicators.

Hence, as for me, the best solution would be to run all in 1 EA. I am sure to have in future more such methods/EAs and if i would make for each one a new EA, it would not run performant.

Perhaps its possible to run all in one EA and each method calls a "light-stupid" EA which only open/close positions?

Please suggest solution & price& time. Thank you.