Navigate to the ‘Trade’ tab, tap on the order you wish you modify, then select ‘Modify’.
You will be prompted to input your Stop Loss or Take Profit details. Once these have been entered, tap ‘Modify’.
Where can I download the MetaTrader 4 iPhone app?
How do I log in to my account using the MT4 iPhone app?
How do I place a trade on the MT4 iPhone app?