i think that this is not the same setting - you have replacing set to false in your strategy, so the pending order will not be replaced
but if you have set replacing to true - the replacing could happen in 2 methods - modify or delete and place new pending order. By modifying you are posting to platform 1 order, but to delete and replace you need 2 orders. So modifying should be better for the platform behavior.
Hankeys is right, those are different settings. "Replacing pending orders" settingĀ is set inside the strategy and cannot be modified in EA parameters.
ModifyInsteadOfReplacing is a performance optimizing option that modifies existing pending order instead of creating a new one thus limiting the total orders count.
but if you have set replacing to true - the replacing could happen in 2 methods - modify or delete and place new pending order. By modifying you are posting to platform 1 order, but to delete and replace you need 2 orders. So modifying should be better for the platform behavior.