How to allow sell & buy at the same time (Metatrader 4 )

[Deleted]  
Please help me how it works . I have an EA that depends on that system
 

the same split second ? no way !!!

BTW accounts that under the NFA regulation r not allow to do that on the same currency

[Deleted]  
NFA?
 
123456781:
NFA?
NFA