If you are using 2 platforms simultaneously, you might experience problems viewing closed trades. Your ATM strategies will either not work or be implemented improperly in ATAS if another software is used for trading. Therefore, please do not use ATM protective strategies in ATAS e.g. if you are using NT for trading. You can still have any charts/tapes open in ATAS, but it is important that you do not enable ATM strategies.
To hide your orders, go to Settings-Trade Settings-Visibility-Hidden.