Hello Ibrahimovic,
if you have placed different EAs on different charts you should not see same orders.
You can easily understand if the orders are coming from the same EA with the comment (the magic number).
May be you say same opening from few EAs, but they will have different SL and TP, and different exit conditions.
This might happen because the EAs open on the opening of the bar. If few EAs meet the entry conditions on the opening of one and the same bar, than they will open trades together nearly at the same price.
Cheers