Simple EA executing 1 variable with 4 values from MATLAB

Good Day Developers!

I am looking for a simple script to execute trades based on a external script running on mathlab.

It would be great, if you could also give some experience/advice on how to best export the calculations running in math lab. 

The following is performed, based on the value of a single variable.

If the variable is...

... 0 = no trades shall be running / everything is closed

--- 1 = Pair 1 long, Pair 2 short

... 2 = Pair 1 short, Pair 2 long

... 3 = Close all running positions.

The risk of the positions opened by both of the numbers "1" and "2" shall be a percentage, that can be defined in the settings of the EA.

If you have any further questions, please let me know.

Best regards,

Jonny