How to login to your MetaTrader on MacOS
As soon as the platform launches, please go to the File menu on the upper left corner and select the Login to Trade Account option:
From the new Pop up window, enter the Account ID number, the Password and the Server from the email received upon the Account Approval:
You will know if the login is successful when you see the Balance of the Account on the bottom Terminal MT4/Toolbox MT5/Terminal and also the Account ID on the top left: