Dear Experts and Coders

Please take alook and find logic of this Grid EA according to below forward test:

Forextime cent demo
Login: 15114476
Investor: pubp7is

I want to add an option of "ReverseTrading" to use Correlated pairs and those pairs neutralize each-other movements.
the author says: use 5000$ , 0.01 lot on EU,EJ,UJ simultaneously .

I want this combination:
EU
JE (reverse trade by that option on EJ )
UJ
(each currency once in first and once in last letter)

What is your Idea ?

Thank You